1 00:00:06,794 --> 00:00:12,118 This chimpanzee stumbles across a windfall of overripe plums. 2 00:00:12,118 --> 00:00:17,601 Many of them have split open, drawing him to their intoxicating fruity odor. 3 00:00:17,601 --> 00:00:23,042 He gorges himself and begins to experience some… strange effects. 4 00:00:23,042 --> 00:00:26,032 This unwitting ape has stumbled on a process 5 00:00:26,032 --> 00:00:28,179 that humans will eventually harness 6 00:00:28,179 --> 00:00:33,192 to create beer, wine, and other alcoholic drinks. 7 00:00:33,192 --> 00:00:38,878 The sugars in overripe fruit attract microscopic organisms known as yeasts. 8 00:00:38,878 --> 00:00:43,781 As the yeasts feed on the fruit sugars they produce a compound called ethanol— 9 00:00:43,781 --> 00:00:46,791 the type of alcohol in alcoholic beverages. 10 00:00:46,791 --> 00:00:49,766 This process is called fermentation. 11 00:00:49,766 --> 00:00:54,611 Nobody knows exactly when humans began to create fermented beverages. 12 00:00:54,611 --> 00:00:59,572 The earliest known evidence comes from 7,000 BCE in China, 13 00:00:59,572 --> 00:01:01,682 where residue in clay pots 14 00:01:01,682 --> 00:01:04,875 has revealed that people were making an alcoholic beverage 15 00:01:04,875 --> 00:01:09,311 from fermented rice, millet, grapes, and honey. 16 00:01:09,311 --> 00:01:11,111 Within a few thousand years, 17 00:01:11,111 --> 00:01:15,441 cultures all over the world were fermenting their own drinks. 18 00:01:15,441 --> 00:01:19,663 Ancient Mesopotamians and Egyptians made beer throughout the year 19 00:01:19,663 --> 00:01:21,919 from stored cereal grains. 20 00:01:21,919 --> 00:01:24,837 This beer was available to all social classes, 21 00:01:24,837 --> 00:01:28,232 and workers even received it in their daily rations. 22 00:01:28,232 --> 00:01:32,882 They also made wine, but because the climate wasn’t ideal for growing grapes, 23 00:01:32,882 --> 00:01:36,212 it was a rare and expensive delicacy. 24 00:01:36,212 --> 00:01:40,162 By contrast, in Greece and Rome, where grapes grew more easily, 25 00:01:40,162 --> 00:01:45,072 wine was as readily available as beer was in Egypt and Mesopotamia. 26 00:01:45,072 --> 00:01:48,702 Because yeasts will ferment basically any plant sugars, 27 00:01:48,702 --> 00:01:53,995 ancient peoples made alcohol from whatever crops and plants grew where they lived. 28 00:01:53,995 --> 00:01:57,195 In South America, people made chicha from grains, 29 00:01:57,195 --> 00:01:59,912 sometimes adding hallucinogenic herbs. 30 00:01:59,912 --> 00:02:05,316 In what’s now Mexico, pulque, made from cactus sap, was the drink of choice, 31 00:02:05,316 --> 00:02:09,476 while East Africans made banana and palm beer. 32 00:02:09,476 --> 00:02:13,916 And in the area that’s now Japan, people made sake from rice. 33 00:02:13,916 --> 00:02:17,689 Almost every region of the globe had its own fermented drinks. 34 00:02:17,689 --> 00:02:21,125 As alcohol consumption became part of everyday life, 35 00:02:21,125 --> 00:02:25,680 some authorities latched onto effects they perceived as positive— 36 00:02:25,680 --> 00:02:28,920 Greek physicians considered wine to be good for health, 37 00:02:28,920 --> 00:02:32,305 and poets testified to its creative qualities. 38 00:02:32,305 --> 00:02:36,427 Others were more concerned about alcohol’s potential for abuse. 39 00:02:36,427 --> 00:02:38,970 Greek philosophers promoted temperance. 40 00:02:38,970 --> 00:02:43,547 Early Jewish and Christian writers in Europe integrated wine into rituals 41 00:02:43,547 --> 00:02:46,936 but considered excessive intoxication a sin. 42 00:02:46,936 --> 00:02:49,715 And in the middle east, Africa, and Spain, 43 00:02:49,715 --> 00:02:53,871 an Islamic rule against praying while drunk gradually solidified 44 00:02:53,871 --> 00:02:57,052 into a general ban on alcohol. 45 00:02:57,052 --> 00:03:01,613 Ancient fermented beverages had relatively low alcohol content. 46 00:03:01,613 --> 00:03:07,332 At about 13% alcohol, the by-products wild yeasts generate during fermentation 47 00:03:07,332 --> 00:03:09,692 become toxic and kill them. 48 00:03:09,692 --> 00:03:15,000 When the yeasts die, fermentation stops and the alcohol content levels off. 49 00:03:15,000 --> 00:03:18,900 So for thousands of years, alcohol content was limited. 50 00:03:18,900 --> 00:03:22,834 That changed with the invention of a process called distillation. 51 00:03:22,834 --> 00:03:27,280 9th century Arabic writings describe boiling fermented liquids 52 00:03:27,280 --> 00:03:29,708 to vaporize the alcohol in them. 53 00:03:29,708 --> 00:03:34,741 Alcohol boils at a lower temperature than water, so it vaporizes first. 54 00:03:34,741 --> 00:03:39,490 Capture this vapor, cool it down, and what’s left is liquid alcohol 55 00:03:39,490 --> 00:03:43,800 much more concentrated than any fermented beverage. 56 00:03:43,800 --> 00:03:47,992 At first, these stronger spirits were used for medicinal purposes. 57 00:03:47,992 --> 00:03:51,541 Then, spirits became an important trade commodity because, 58 00:03:51,541 --> 00:03:55,097 unlike beer and wine, they didn’t spoil. 59 00:03:55,097 --> 00:03:59,358 Rum made from sugar harvested in European colonies in the Caribbean 60 00:03:59,358 --> 00:04:03,595 became a staple for sailors and was traded to North America. 61 00:04:03,595 --> 00:04:06,663 Europeans brought brandy and gin to Africa 62 00:04:06,663 --> 00:04:12,251 and traded it for enslaved people, land, and goods like palm oil and rubber. 63 00:04:12,251 --> 00:04:16,001 Spirits became a form of money in these regions. 64 00:04:16,001 --> 00:04:17,903 During the Age of Exploration, 65 00:04:17,903 --> 00:04:21,745 spirits played a crucial role in long distance sea voyages. 66 00:04:21,745 --> 00:04:25,677 Sailing from Europe to east Asia and the Americas could take months, 67 00:04:25,677 --> 00:04:28,848 and keeping water fresh for the crews was a challenge. 68 00:04:28,848 --> 00:04:33,728 Adding a bucket of brandy to a water barrel kept water fresh longer 69 00:04:33,728 --> 00:04:38,520 because alcohol is a preservative that kills harmful microbes. 70 00:04:38,520 --> 00:04:40,320 So by the 1600s, 71 00:04:40,320 --> 00:04:43,890 alcohol had gone from simply giving animals a buzz 72 00:04:43,890 --> 00:04:49,754 to fueling global trade and exploration— along with all their consequences. 73 00:04:49,754 --> 00:04:55,189 As time went on, its role in human society would only get more complicated.