In China, teachers allow children to sleep in class for around 20 minutes to help improve their learning.
13
As part of an advertising campaign, Molson, a Canadian beer company, strategically placed 'beer fridges' around Europe that only Canadian passports could unlock.
11
During World War 1, starving wolves amassed in such great numbers that Germans and Russians had a temporary cease fire to fight off the wolf attacks.
45
Genghis Khan exempted the poor and clergy from taxes, encouraged literacy, and established free religion, leading many peoples to join his empire before they were even conquered.
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