WEBVTT 00:00:03.688 --> 00:00:04.767 Good evening! 00:00:04.767 --> 00:00:05.695 We are in one of the most important 00:00:05.695 --> 00:00:10.530 archaeological sites of the world: 00:00:10.530 --> 00:00:11.593 Pompeii. 00:00:11.593 --> 00:00:12.508 We're in one of 00:00:12.508 --> 00:00:15.853 the most important sites of Pompeii: 00:00:15.853 --> 00:00:16.879 the big theater. 00:00:17.459 --> 00:00:18.607 2000 years ago, you had 00:00:18.607 --> 00:00:20.705 a thousand people watching 00:00:20.705 --> 00:00:22.334 anyone on the stage. 00:00:22.334 --> 00:00:25.014 But do we really know Pompeii? 00:00:26.006 --> 00:00:26.976 Well, yes. 00:00:26.976 --> 00:00:29.053 We've seen so many movies, 00:00:29.053 --> 00:00:31.016 read so many novels 00:00:31.016 --> 00:00:33.213 telling us about the big volcano, 00:00:33.213 --> 00:00:35.916 telling us about the lava, 00:00:35.936 --> 00:00:37.577 the lava flows and everything. 00:00:37.577 --> 00:00:40.688 Well, in fact, there are many myths 00:00:40.688 --> 00:00:41.987 to be cleared up. 00:00:42.637 --> 00:00:43.535 First of all, 00:00:43.535 --> 00:00:47.514 we didn't have any volcano visible at all. 00:00:47.514 --> 00:00:49.314 And that is something that 00:00:49.324 --> 00:00:52.527 can be shocking, but if you speak to 00:00:52.537 --> 00:00:54.359 and have a lunch 00:00:54.359 --> 00:00:57.337 maybe with a vulcanologist, 00:00:57.337 --> 00:00:59.056 or an anthropologist, 00:00:59.056 --> 00:01:00.496 or an archaeologist, 00:01:00.496 --> 00:01:01.723 he will tell you 00:01:01.723 --> 00:01:04.674 so many truths about Pompeii 00:01:04.674 --> 00:01:06.955 that you will really be surprised to know. 00:01:06.955 --> 00:01:07.735 First of all, 00:01:07.735 --> 00:01:09.534 so we're talking about volcanoes. 00:01:09.534 --> 00:01:12.011 Today it's a towering volcano. 00:01:12.011 --> 00:01:13.793 But at the time of Pompeii, 00:01:13.793 --> 00:01:14.802 it didn't exist, 00:01:14.802 --> 00:01:17.270 for the simple reason that it started 00:01:17.270 --> 00:01:20.454 to exist that day of the eruption. 00:01:20.454 --> 00:01:22.507 From that day, it started to grow 00:01:22.507 --> 00:01:24.577 and become what we see today. 00:01:24.577 --> 00:01:26.832 So, what could the Pompeiians see? 00:01:26.832 --> 00:01:27.682 Very simple. 00:01:27.692 --> 00:01:31.166 There was a small mound with a crest. 00:01:31.166 --> 00:01:33.590 And you can still see it today. 00:01:33.590 --> 00:01:35.548 It's exactly where the big volcano 00:01:35.548 --> 00:01:37.217 is sitting today. 00:01:37.217 --> 00:01:40.727 And, if you could see it at that time, 00:01:40.727 --> 00:01:42.692 you could have seen so many woods 00:01:42.692 --> 00:01:46.958 You could have seen, I don't know, deer 00:01:46.958 --> 00:01:48.772 Pompeiians would probably go there 00:01:48.772 --> 00:01:51.305 to collect wood, pick up mushrooms, 00:01:51.305 --> 00:01:52.259 make love. 00:01:52.259 --> 00:01:54.538 It was a friend that betrayed them. 00:01:54.538 --> 00:01:56.981 So, that's the first thing: no volcano, 00:01:56.991 --> 00:01:58.654 the first myth to clear up. 00:01:58.654 --> 00:02:00.938 And then, another thing is the lava. 00:02:00.948 --> 00:02:02.771 You didn't have a single drop of lava 00:02:02.771 --> 00:02:05.161 getting to Pompeii. Not a single one. 00:02:05.161 --> 00:02:09.977 But, gases, ashes, lapilli, and so on. 00:02:09.977 --> 00:02:11.267 So, that's another myth. 00:02:11.267 --> 00:02:13.273 And we will see what happened exactly. 00:02:13.273 --> 00:02:14.469 The third myth is about 00:02:14.469 --> 00:02:17.712 the date of the eruption. 00:02:17.712 --> 00:02:19.440 We know that everything happened 00:02:19.440 --> 00:02:21.047 the 24th twenty-fourth of August, 00:02:21.047 --> 00:02:22.630 in 79 A.D. 00:02:22.630 --> 00:02:24.142 But how do we know that? 00:02:24.142 --> 00:02:25.880 But, we know that because 00:02:25.880 --> 00:02:29.261 Pliny the Younger wrote that in a letter. 00:02:29.261 --> 00:02:30.212 He was a witness. 00:02:30.212 --> 00:02:32.896 Actually, if you try to see, 00:02:32.896 --> 00:02:35.343 there are at least seven witnesses, 00:02:35.343 --> 00:02:39.116 seven survivors of the eruption. 00:02:39.116 --> 00:02:41.099 Today, I would also like 00:02:41.099 --> 00:02:42.256 to spend some time 00:02:42.256 --> 00:02:44.164 to answer one question, that is: 00:02:44.164 --> 00:02:46.845 "Would we have survived the eruption, 00:02:46.845 --> 00:02:49.161 had we been there 00:02:49.161 --> 00:02:50.563 almost 2000 years ago?" 00:02:50.563 --> 00:02:51.960 So, Pliny the Younger said 00:02:51.960 --> 00:02:53.172 that everything happened 00:02:53.172 --> 00:02:55.921 on the 24th of August. 00:02:55.921 --> 00:02:57.584 But how do we know that? 00:02:57.584 --> 00:03:00.037 I told you there was a letter. 00:03:00.047 --> 00:03:02.847 This letter, though, is not here anymore. 00:03:02.847 --> 00:03:04.224 It vanished in time. 00:03:04.224 --> 00:03:07.528 But, in the Middle Ages, the monks started 00:03:07.528 --> 00:03:09.926 to write some copies of that letter. 00:03:09.926 --> 00:03:12.018 And so we have three families 00:03:12.018 --> 00:03:14.271 of that old letter made by monks 00:03:14.271 --> 00:03:16.077 who were writing copies 00:03:16.077 --> 00:03:18.193 and another one would copy the copy 00:03:18.193 --> 00:03:19.045 and so forth. 00:03:19.045 --> 00:03:21.161 But, of course, they would make mistakes. 00:03:21.161 --> 00:03:23.803 So, is the date right or not? 00:03:23.803 --> 00:03:25.741 Well, if you see the different letters, 00:03:25.741 --> 00:03:27.906 you will see that they are different dates 00:03:27.906 --> 00:03:31.526 One says "Nine days before 00:03:31.526 --> 00:03:33.659 the Calends of September," 00:03:33.659 --> 00:03:35.463 which is the 24th of August. 00:03:35.463 --> 00:03:38.072 Another one says, "Nine days before 00:03:38.072 --> 00:03:39.921 the Calends of November," 00:03:39.921 --> 00:03:42.050 which is the 24th of October. 00:03:42.050 --> 00:03:43.421 Where is the answer? 00:03:43.421 --> 00:03:45.743 Well, the answer is buried here, 00:03:45.743 --> 00:03:47.216 in the strata of Pompeii. 00:03:47.216 --> 00:03:50.095 In fact, archaeologists have been finding 00:03:50.095 --> 00:03:53.065 nuts, have been finding chestnuts, 00:03:53.075 --> 00:03:55.926 dates, dried figs, 00:03:55.926 --> 00:03:59.946 which are not really summer fruits, 00:03:59.946 --> 00:04:02.953 but rather you find them in the fall. 00:04:02.953 --> 00:04:04.751 And they've been finding 00:04:04.751 --> 00:04:07.024 so many little clues 00:04:07.024 --> 00:04:09.401 about the warm weather. 00:04:09.401 --> 00:04:11.359 For instance, people were dressed up 00:04:11.359 --> 00:04:13.827 with very warm clothes, 00:04:13.827 --> 00:04:15.490 with scarves, for instance. 00:04:15.490 --> 00:04:17.514 So, that means that, probably, 00:04:17.514 --> 00:04:19.997 it was a very cold climate, 00:04:19.997 --> 00:04:21.964 which makes more sense 00:04:21.964 --> 00:04:23.612 if it is around November. 00:04:23.612 --> 00:04:25.933 The one interesting clue, though, 00:04:25.933 --> 00:04:27.435 is about wine. 00:04:27.435 --> 00:04:29.454 In the diggings, 00:04:29.454 --> 00:04:32.162 in the decades in the past, 00:04:32.162 --> 00:04:36.135 archaeologists found some big jars 00:04:36.135 --> 00:04:37.824 containing wine. 00:04:37.824 --> 00:04:40.549 So, what the Romans would do 00:04:40.549 --> 00:04:43.189 is that they would have grape harvests, 00:04:43.189 --> 00:04:45.421 and they would collect grape juice, 00:04:45.421 --> 00:04:48.776 put that in those big, gigantic jars 00:04:48.776 --> 00:04:50.018 called dolia. 00:04:50.018 --> 00:04:51.853 And they would wait ten days 00:04:51.853 --> 00:04:53.494 for it to boil, to ferment, 00:04:53.494 --> 00:04:54.822 and then, twenty days 00:04:54.822 --> 00:04:56.681 just to check that everything was okay. 00:04:56.681 --> 00:04:57.895 And then they would cover 00:04:57.895 --> 00:04:58.984 and seal everything. 00:04:58.984 --> 00:04:59.985 And that's exactly 00:04:59.985 --> 00:05:01.913 what the archaeologists found. 00:05:01.913 --> 00:05:03.231 So, as a matter of fact, 00:05:03.231 --> 00:05:05.933 grape harvest was over 00:05:05.933 --> 00:05:07.692 at least from a month. 00:05:07.692 --> 00:05:10.516 And that would probably tell you 00:05:10.516 --> 00:05:12.192 that the date of the eruption 00:05:12.192 --> 00:05:15.997 was around the end of October. 00:05:15.997 --> 00:05:19.206 So, 24th of October makes sense. 00:05:19.206 --> 00:05:22.413 So, that, of course, is no definite proof, 00:05:22.413 --> 00:05:24.071 but that's interesting to see that 00:05:24.071 --> 00:05:26.642 such a known site like Pompeii 00:05:26.642 --> 00:05:28.631 really is still an open site 00:05:28.631 --> 00:05:30.983 with many discoveries to be done. 00:05:30.983 --> 00:05:32.931 Another myth to be cleared up is that 00:05:32.931 --> 00:05:35.244 Pompeii, we always see that in the movies, 00:05:35.244 --> 00:05:39.568 was a city with wealthy people, 00:05:39.568 --> 00:05:42.194 with banquets, gladiators, and so on. 00:05:42.194 --> 00:05:43.921 Well, that's not the truth. 00:05:43.921 --> 00:05:45.464 In the day of the eruption, 00:05:45.464 --> 00:05:48.318 it was a city full in crisis. 00:05:48.318 --> 00:05:50.968 There was no running water, 00:05:50.968 --> 00:05:51.954 no running water, 00:05:51.954 --> 00:05:54.050 So, no bathhouses, the thermae. 00:05:54.050 --> 00:05:56.528 You didn't see anyone having fun 00:05:56.528 --> 00:05:57.770 in the thermae, because 00:05:57.770 --> 00:05:59.256 you didn't have water. 00:05:59.256 --> 00:06:01.243 There was one therma working 00:06:01.243 --> 00:06:05.020 which had its own reservoir of water. 00:06:05.020 --> 00:06:06.661 So, maybe people would go there. 00:06:06.661 --> 00:06:08.323 But, there was a big crisis. 00:06:08.323 --> 00:06:10.661 And another thing is that, well, 00:06:10.661 --> 00:06:12.148 you didn't have a lot of people 00:06:12.148 --> 00:06:13.693 like in the old times in Pompeii 00:06:13.693 --> 00:06:17.142 because you had a lot of earthquakes. 00:06:17.142 --> 00:06:18.780 Earthquakes were a signal 00:06:18.780 --> 00:06:23.188 of the eruption coming, getting close 00:06:23.188 --> 00:06:25.224 like the magma was pushing 00:06:25.224 --> 00:06:30.276 and provoking those earthquakes. 00:06:30.276 --> 00:06:32.553 So, many people, especially aristocracy, 00:06:32.553 --> 00:06:33.339 had gone away. 00:06:33.339 --> 00:06:35.960 You had new people, new rich, 00:06:35.960 --> 00:06:38.827 former slaves, the liberti, so called, 00:06:38.827 --> 00:06:41.248 who would buy fancy houses 00:06:41.248 --> 00:06:42.784 and they would live there. 00:06:42.784 --> 00:06:44.929 But, you didn't have 00:06:44.929 --> 00:06:47.004 the old society of Pompeii. 00:06:47.014 --> 00:06:49.039 You didn't have running water. 00:06:49.039 --> 00:06:50.752 Running water was not there, 00:06:50.762 --> 00:06:52.724 because probably the aqueduct 00:06:52.724 --> 00:06:54.271 was broken in some places, 00:06:54.271 --> 00:06:55.544 maybe due to earthquakes, 00:06:55.574 --> 00:06:58.982 maybe due to the swelling of the soil, 00:06:58.982 --> 00:06:59.717 of the earth. 00:06:59.717 --> 00:07:01.263 We don't know exactly. 00:07:01.263 --> 00:07:02.656 So, as you can see, there are 00:07:02.656 --> 00:07:04.181 many myths to be cleared up. 00:07:04.181 --> 00:07:07.181 So, let's go to the day of the eruption. 00:07:07.181 --> 00:07:08.713 What happened exactly? 00:07:08.713 --> 00:07:10.578 And let's try to answer the question, 00:07:10.578 --> 00:07:12.353 "Would I have survived?" 00:07:12.353 --> 00:07:16.134 Well, first of all, let's go to that day. 00:07:16.134 --> 00:07:18.181 If it was the 24th of October, 00:07:18.181 --> 00:07:20.632 it was a Friday. Clear sky. 00:07:20.632 --> 00:07:21.826 We know that because 00:07:21.826 --> 00:07:22.830 one of the witnesses, 00:07:22.830 --> 00:07:24.777 who was living 30 kilometers 00:07:24.777 --> 00:07:27.268 away from here, saw everything. 00:07:27.268 --> 00:07:29.481 So, imagine that it was probably, 00:07:29.481 --> 00:07:30.495 we don't know, of course, 00:07:30.495 --> 00:07:31.915 the end of October, 00:07:31.915 --> 00:07:33.725 clear sky, maybe, 00:07:33.725 --> 00:07:37.000 you know, a very cold morning, 00:07:37.000 --> 00:07:38.166 and then, what happened? 00:07:38.166 --> 00:07:39.818 Well, we know from the letter 00:07:39.818 --> 00:07:41.329 of Pliny the Younger 00:07:41.329 --> 00:07:43.060 that everything started, 00:07:43.060 --> 00:07:45.379 more or less, at noon, lunchtime. 00:07:45.379 --> 00:07:49.242 Well, vulcanologists found some clues 00:07:49.242 --> 00:07:51.565 that everything happened slightly before. 00:07:51.565 --> 00:07:52.921 Well, Pliny didn't see that; 00:07:52.921 --> 00:07:54.181 he was 30 kilometers away. 00:07:54.181 --> 00:07:56.491 But, probably, the volcano started 00:07:56.491 --> 00:07:59.248 to open, crack open in that morning. 00:07:59.248 --> 00:08:02.321 Because, you see, that small, 00:08:02.321 --> 00:08:04.779 well, long mound, 00:08:04.779 --> 00:08:08.192 similar to the back of a whale, 00:08:08.192 --> 00:08:10.471 that betrayed the Romans, 00:08:10.471 --> 00:08:11.901 was not a mound. 00:08:11.901 --> 00:08:14.943 It was a volcano, a very old volcano, 00:08:14.943 --> 00:08:17.305 silent volcano, that had not erupted 00:08:17.305 --> 00:08:19.993 for the last centuries. 00:08:19.993 --> 00:08:22.713 So, no one knew it was a volcano. 00:08:22.713 --> 00:08:25.534 But that morning, it woke up. 00:08:25.534 --> 00:08:27.738 And it started to crack open 00:08:27.738 --> 00:08:29.954 and exactly, let's say, 00:08:29.954 --> 00:08:31.839 the first hours of the morning 00:08:31.839 --> 00:08:33.037 were terrible. 00:08:33.037 --> 00:08:35.658 People, let's say, started to gather 00:08:35.658 --> 00:08:38.232 in the Forum, which is, you know, 00:08:38.232 --> 00:08:40.154 it was the central place, 00:08:40.154 --> 00:08:42.439 central square of Pompeii. 00:08:42.439 --> 00:08:43.723 Everyone would gather there 00:08:43.723 --> 00:08:44.876 in the morning, usually, 00:08:44.876 --> 00:08:46.056 just to get information, 00:08:46.056 --> 00:08:47.000 to meet friends. 00:08:47.000 --> 00:08:49.750 It was just like a tv set of that time. 00:08:49.750 --> 00:08:51.047 And they started to gather. 00:08:51.047 --> 00:08:52.713 And they saw something weird. 00:08:52.713 --> 00:08:57.111 That very low mound was covered 00:08:57.111 --> 00:08:59.876 with a kind of fog, let's say, 00:08:59.876 --> 00:09:01.941 with ashes that had covered 00:09:01.941 --> 00:09:03.474 one of the sides. 00:09:03.474 --> 00:09:05.421 It looked like it had snowed. 00:09:05.421 --> 00:09:08.281 And they started to speak, 00:09:08.281 --> 00:09:09.322 one with the other, 00:09:09.322 --> 00:09:10.090 "What happened?" 00:09:10.090 --> 00:09:12.195 Well, some people probably came 00:09:12.195 --> 00:09:13.193 from the countryside, 00:09:13.193 --> 00:09:14.865 telling strange things, 00:09:14.865 --> 00:09:16.817 telling people, "Well, you know, there, 00:09:16.817 --> 00:09:20.022 we hear noises like thunder. 00:09:20.022 --> 00:09:22.228 There is a strange smell of sulfur 00:09:22.228 --> 00:09:23.772 just from that mountain." 00:09:23.772 --> 00:09:26.421 But, then something happened. 00:09:26.421 --> 00:09:29.725 The whole thing started to explode. 00:09:29.725 --> 00:09:31.996 The mouth got opened and you had 00:09:31.996 --> 00:09:35.714 a gigantic column of ashes, vapors, 00:09:35.714 --> 00:09:36.901 going up in the sky. 00:09:36.901 --> 00:09:38.085 It would reach more than 00:09:38.085 --> 00:09:39.830 32 kilometers of height 00:09:39.830 --> 00:09:42.047 in the hour, which is three times 00:09:42.047 --> 00:09:46.371 what, actually, a jetliner can reach. 00:09:46.371 --> 00:09:48.960 So, just imagine people seeing 00:09:48.960 --> 00:09:51.015 that column going high in the sky, 00:09:51.015 --> 00:09:53.216 just staring at something. 00:09:53.216 --> 00:09:55.367 They didn't even know what a volcano was. 00:09:55.367 --> 00:09:59.117 Well, this is just the beginning 00:09:59.117 --> 00:10:00.421 of the tragedy. 00:10:00.421 --> 00:10:02.081 If you think about that column 00:10:02.081 --> 00:10:05.323 going up and expanding in the air, 00:10:05.323 --> 00:10:07.195 that's what Pliny the Younger tells us, 00:10:07.195 --> 00:10:11.099 you can imagine like a big stain of ink 00:10:11.099 --> 00:10:13.176 getting bigger and bigger, 00:10:13.176 --> 00:10:14.856 covering the sun. 00:10:14.856 --> 00:10:16.278 And then, people started 00:10:16.278 --> 00:10:17.194 to hear something. 00:10:17.194 --> 00:10:20.472 It was just a noise of grail, 00:10:20.472 --> 00:10:22.453 a noise of something falling. 00:10:22.453 --> 00:10:24.663 Actually, you had the lapilli. 00:10:24.663 --> 00:10:26.459 You can see them all around us. 00:10:26.459 --> 00:10:28.605 Lapilli? What is a lapilli? 00:10:28.605 --> 00:10:32.036 It is a very, very small rock, 00:10:32.036 --> 00:10:32.853 but very light. 00:10:32.853 --> 00:10:34.164 It floats in the water. 00:10:34.164 --> 00:10:35.933 It's just like a piece of cork. 00:10:35.933 --> 00:10:37.311 It doesn't really kill you. 00:10:37.311 --> 00:10:40.587 But, it is something falling from the sky. 00:10:40.587 --> 00:10:41.349 What is it? 00:10:41.349 --> 00:10:42.690 Well, just imagine 00:10:42.690 --> 00:10:43.876 a bottle of champagne. 00:10:43.876 --> 00:10:45.781 You open it, you have foam coming up. 00:10:45.781 --> 00:10:49.541 But if you see in the lower part 00:10:49.541 --> 00:10:52.050 of the bottle, the wine is still watery. 00:10:52.050 --> 00:10:53.155 I mean, you still have wine. 00:10:53.155 --> 00:10:54.867 But as the wine goes up in the neck, 00:10:54.867 --> 00:10:57.785 it transforms itself into foam. 00:10:57.785 --> 00:11:00.746 And that's exactly what that volcano did. 00:11:00.746 --> 00:11:03.259 The magma in the magmatic chamber 00:11:03.259 --> 00:11:05.195 was magma, but as it came up, 00:11:05.195 --> 00:11:06.995 it was just like a foam, 00:11:06.995 --> 00:11:09.692 solidified foam, that turned out 00:11:09.692 --> 00:11:11.849 to be those lapilli falling. 00:11:11.849 --> 00:11:14.362 So people started just to see, 00:11:14.362 --> 00:11:17.044 to hear that, those pieces of rock, 00:11:17.044 --> 00:11:19.214 very small and very light, 00:11:19.214 --> 00:11:20.494 hitting the tiles. 00:11:20.494 --> 00:11:22.061 But they were not the killers. 00:11:22.061 --> 00:11:23.236 So, I asked myself, 00:11:23.236 --> 00:11:24.828 "Why didn't the people go away?" 00:11:24.828 --> 00:11:26.591 Well, if you go and see 00:11:26.591 --> 00:11:28.192 the strata of the lapilli, 00:11:28.192 --> 00:11:30.846 you will see, you find rocks that big, 00:11:30.846 --> 00:11:33.167 gigantic, big rocks 00:11:33.167 --> 00:11:34.914 coming from the volcano, 00:11:34.914 --> 00:11:36.476 coming from kilometers, 00:11:36.476 --> 00:11:39.860 really, killers, like meteors, 00:11:39.860 --> 00:11:41.528 falling from the sky. 00:11:41.528 --> 00:11:43.960 Actually, in Ercolano, 00:11:43.960 --> 00:11:45.854 which is not too far away from here, 00:11:45.854 --> 00:11:48.036 in the past a skeleton of a man 00:11:48.036 --> 00:11:50.661 without legs was found, 00:11:50.661 --> 00:11:51.653 and close to him 00:11:51.653 --> 00:11:53.556 there was a big, gigantic rock 00:11:53.556 --> 00:11:55.153 fallen from that volcano. 00:11:55.153 --> 00:11:56.978 And then, so people, just imagine, 00:11:56.978 --> 00:11:59.047 started to see those rocks coming down, 00:11:59.047 --> 00:12:02.026 smoking rocks, hitting the roofs, 00:12:02.026 --> 00:12:03.486 making holes in the roofs. 00:12:03.486 --> 00:12:05.401 So people started to go away. 00:12:05.401 --> 00:12:07.028 They started to do 00:12:07.028 --> 00:12:08.562 what you and me would have done, 00:12:08.562 --> 00:12:09.941 that is, going back home, 00:12:09.941 --> 00:12:11.681 looking for the people we love. 00:12:11.681 --> 00:12:14.623 And just, it was panic everywhere. 00:12:14.623 --> 00:12:16.663 As a matter of fact, 00:12:16.663 --> 00:12:18.833 that was a time when 00:12:18.833 --> 00:12:21.181 you would have your life saved. 00:12:21.181 --> 00:12:23.594 If you had fled, 00:12:23.594 --> 00:12:25.398 if you had gone away from Pompeii, 00:12:25.398 --> 00:12:26.898 you could have survived. 00:12:26.898 --> 00:12:29.436 Why? Because the lapilli 00:12:29.436 --> 00:12:31.726 started to accumulate in the soil 00:12:31.726 --> 00:12:34.349 for hours. But after two or three hours, 00:12:34.349 --> 00:12:37.574 it was that straight up lapilli, 00:12:37.574 --> 00:12:38.558 more or less. 00:12:38.558 --> 00:12:41.061 After that time, you couldn't 00:12:41.061 --> 00:12:42.901 see anything outside Pompeii. 00:12:42.901 --> 00:12:44.254 You couldn't see the roads, 00:12:44.254 --> 00:12:46.315 just like when you have a heavy snow. 00:12:46.315 --> 00:12:47.570 You couldn't see anything. 00:12:47.570 --> 00:12:48.976 So, where could you go? 00:12:48.976 --> 00:12:50.663 And another thing is that you had 00:12:50.663 --> 00:12:52.021 like a fog coming down. 00:12:52.021 --> 00:12:53.545 It was actually like a, 00:12:53.545 --> 00:12:55.594 imagine a desert storm. 00:12:55.594 --> 00:12:58.260 You had like ashes coming down. 00:12:58.260 --> 00:12:59.472 You couldn't see 00:12:59.472 --> 00:13:01.214 more than one or two meters. 00:13:01.214 --> 00:13:03.610 And these ashes were containing 00:13:03.610 --> 00:13:05.253 pieces of glass, actually, 00:13:05.253 --> 00:13:06.534 that were actually 00:13:06.534 --> 00:13:08.941 hurting your windpipe. 00:13:08.941 --> 00:13:10.636 So you had to breathe with a cloth 00:13:10.636 --> 00:13:12.516 dipped in water. 00:13:12.516 --> 00:13:14.391 It was really a nightmare. 00:13:14.391 --> 00:13:15.559 So it is normal to think 00:13:15.559 --> 00:13:17.955 that people just hid in their houses. 00:13:17.955 --> 00:13:19.975 What happened then? 00:13:19.975 --> 00:13:22.206 Well, the lapilli started to accumulate. 00:13:22.206 --> 00:13:25.367 Once they reached something like a meter, 00:13:25.367 --> 00:13:27.858 a cubic meter, there would be 00:13:27.858 --> 00:13:31.374 an equivalent of six men as weight. 00:13:31.374 --> 00:13:33.346 So you had the roof starting to collapse. 00:13:33.346 --> 00:13:35.794 Actually, one-third of the people 00:13:35.794 --> 00:13:37.394 found dead in Pompeii 00:13:37.394 --> 00:13:41.037 died due to the collapsing of the roofs 00:13:41.037 --> 00:13:41.906 or the floors. 00:13:41.906 --> 00:13:43.933 Probably you had also earthquakes 00:13:43.933 --> 00:13:45.096 in that process. 00:13:45.096 --> 00:13:48.045 So people were in the houses, screaming 00:13:48.045 --> 00:13:49.206 asking for help. 00:13:49.206 --> 00:13:50.620 No one could see anything. 00:13:50.620 --> 00:13:52.718 It was like the end of the world for them. 00:13:52.718 --> 00:13:55.368 And that, for twelve hours. 00:13:55.368 --> 00:13:57.175 Twelve hours later 00:13:57.175 --> 00:13:59.162 say, at one o'clock in the morning, 00:13:59.162 --> 00:14:02.209 let's move and go to Ercolano. 00:14:02.209 --> 00:14:03.641 Ercolano is another town, 00:14:03.641 --> 00:14:05.772 very close to the sea, 00:14:05.772 --> 00:14:07.407 between the sea and the volcano, 00:14:07.407 --> 00:14:08.880 which is about six kilometers 00:14:08.880 --> 00:14:09.976 away from the volcano; 00:14:09.976 --> 00:14:12.489 Pompeii is about eight kilometers away. 00:14:12.489 --> 00:14:14.452 So when archaeologists started to dig 00:14:14.452 --> 00:14:17.661 through the strata in Ercolano, 00:14:17.661 --> 00:14:19.986 they couldn't find dead people. 00:14:19.986 --> 00:14:21.757 All you see are scattered skeletons. 00:14:21.757 --> 00:14:23.192 So everyone thought that 00:14:23.192 --> 00:14:27.556 the inhabitants of Ercolano had escaped, 00:14:27.556 --> 00:14:28.673 escaped somewhere. 00:14:28.673 --> 00:14:30.795 They had actually managed to survive. 00:14:30.795 --> 00:14:32.842 But once the archaeologists 00:14:32.842 --> 00:14:34.249 reached the beach 00:14:34.249 --> 00:14:37.152 and got to the arches, the arcade 00:14:37.152 --> 00:14:39.181 where, usually, the fishing boats 00:14:39.181 --> 00:14:41.426 were parked, just like [in] a garage, 00:14:41.426 --> 00:14:43.733 they found three hundred skeletons. 00:14:43.733 --> 00:14:45.681 They all died in a single moment. 00:14:45.681 --> 00:14:47.661 When you see those skeletons, 00:14:47.661 --> 00:14:49.800 you realize something: they all died 00:14:49.800 --> 00:14:52.669 without defending themselves. 00:14:52.669 --> 00:14:53.963 It's just as if something 00:14:53.963 --> 00:14:56.748 had unplugged life from their bodies. 00:14:56.748 --> 00:14:58.079 Just, boom! 00:14:58.079 --> 00:14:59.831 And what happened, 00:14:59.831 --> 00:15:02.181 and the vulcanologists will tell you that, 00:15:02.181 --> 00:15:05.051 is that the gigantic column 00:15:05.051 --> 00:15:06.804 going up in the sky, 00:15:06.804 --> 00:15:09.537 at a certain time, couldn't stand, 00:15:09.537 --> 00:15:11.789 and it sat on itself, 00:15:11.789 --> 00:15:13.181 it just went down 00:15:13.181 --> 00:15:15.483 and transformed itself 00:15:15.483 --> 00:15:17.350 into deadly avalanches 00:15:17.350 --> 00:15:20.145 made of gas and ashes, 00:15:20.145 --> 00:15:22.901 coming down at a speed of 00:15:22.901 --> 00:15:24.716 one hundred kilometers per hour, 00:15:24.716 --> 00:15:28.065 with a, let's say, a heat of between 00:15:28.065 --> 00:15:30.551 five and six hundred degrees Celsius. 00:15:30.551 --> 00:15:33.280 So, that killed the people instantly. 00:15:33.280 --> 00:15:35.342 If you want to think what happened, 00:15:35.342 --> 00:15:38.571 just imagine being on the shore 00:15:38.571 --> 00:15:40.176 and watching in the night 00:15:40.176 --> 00:15:42.161 the volcano, the red part, 00:15:42.161 --> 00:15:45.161 let's say, of the eruption, 00:15:45.161 --> 00:15:47.494 was instantly being covered by 00:15:47.494 --> 00:15:49.278 that avalanche that's coming down. 00:15:49.278 --> 00:15:50.722 You couldn't see anything. 00:15:50.722 --> 00:15:53.421 But, you know, vulcanologists 00:15:53.421 --> 00:15:55.110 would tell you, maybe you could see 00:15:55.110 --> 00:15:58.401 some flare, something like 00:15:58.401 --> 00:16:02.681 a flock of red, hot bats 00:16:02.681 --> 00:16:03.895 coming toward you. 00:16:03.895 --> 00:16:07.025 And people were instantly killed. 00:16:07.025 --> 00:16:08.602 The fact that you have the bone 00:16:08.602 --> 00:16:11.193 in contact with the ash layers 00:16:11.193 --> 00:16:15.883 means that skin, organs, muscles 00:16:15.883 --> 00:16:19.401 got vaporized in a matter of a second, 00:16:19.401 --> 00:16:20.339 a few seconds. 00:16:20.339 --> 00:16:22.324 So people died violently. 00:16:22.324 --> 00:16:24.000 Let's go back to Pompeii. 00:16:24.000 --> 00:16:25.225 It's morning. 00:16:25.225 --> 00:16:27.656 People hear that things are changing. 00:16:27.656 --> 00:16:28.750 Probably you don't have 00:16:28.750 --> 00:16:30.949 the rain of lapilli anymore. 00:16:30.949 --> 00:16:32.901 So they wouldn't go away. 00:16:32.901 --> 00:16:35.062 But you have so many lapillis, 00:16:35.062 --> 00:16:36.769 it's impossible to open the door. 00:16:36.769 --> 00:16:38.325 So, actually, people go outside 00:16:38.325 --> 00:16:39.087 from the roofs 00:16:39.087 --> 00:16:41.320 and they start to run away. 00:16:41.320 --> 00:16:42.783 But at that time, 00:16:42.783 --> 00:16:45.553 the volcano does the same thing again, 00:16:45.553 --> 00:16:48.569 sits on himself and transforms his column 00:16:48.569 --> 00:16:51.019 on those deadly avalanches of gas. 00:16:51.019 --> 00:16:52.201 The first one stopped 00:16:52.201 --> 00:16:55.014 right at the suburbia of Pompeii. 00:16:55.014 --> 00:16:56.068 The second one kills 00:16:56.068 --> 00:16:57.116 anyone on the street. 00:16:57.116 --> 00:16:58.743 And that's what you see 00:16:58.743 --> 00:17:00.104 are those people, you see 00:17:00.104 --> 00:17:02.512 in those glass frameworks. 00:17:02.512 --> 00:17:03.814 These are the people 00:17:03.814 --> 00:17:04.905 killed in that moment. 00:17:04.905 --> 00:17:07.385 And the third one would come again 00:17:07.385 --> 00:17:09.214 and break down walls, 00:17:09.214 --> 00:17:12.316 open the roof and kill people inside. 00:17:12.316 --> 00:17:13.793 And then there is another one, 00:17:13.793 --> 00:17:16.229 the last one, that is so powerful, 00:17:16.229 --> 00:17:17.592 it goes all the way, 00:17:17.592 --> 00:17:20.205 even at thirty kilometers away 00:17:20.205 --> 00:17:22.070 and Pliny the Younger, 00:17:22.070 --> 00:17:24.020 the one that wrote that letter, 00:17:24.020 --> 00:17:26.847 was almost afraid to die. 00:17:26.847 --> 00:17:29.540 He was staying at thirty kilometers away. 00:17:29.540 --> 00:17:31.331 So this is what happened 00:17:31.331 --> 00:17:32.500 exactly in Pompeii. 00:17:32.500 --> 00:17:35.238 So what you see today 00:17:35.238 --> 00:17:37.809 is a place that probably 00:17:37.809 --> 00:17:38.991 don't tell you much 00:17:38.991 --> 00:17:42.777 about these problems, this atmosphere 00:17:42.777 --> 00:17:43.695 that happened. 00:17:43.695 --> 00:17:45.259 But when you find yourself 00:17:45.259 --> 00:17:47.534 in front of one of those bodies 00:17:47.534 --> 00:17:49.725 inside the glass frame, 00:17:49.725 --> 00:17:51.357 just remember that 00:17:51.357 --> 00:17:52.349 these are not statues. 00:17:52.349 --> 00:17:54.841 These are not petrified people. 00:17:54.841 --> 00:17:58.370 These are people in the process of dying 00:17:58.370 --> 00:18:00.518 in that intimate moment of their life. 00:18:00.518 --> 00:18:01.849 And we, I guess, 00:18:01.849 --> 00:18:03.849 should pay respect to them every time. 00:18:03.849 --> 00:18:04.898 Thank you. 00:18:04.898 --> 00:18:09.797 (applause)