Idiom of the Day
fly by the seat of one's pants
to do a job instinctively rather than by using concrete information
I had to fly by the seat of my pants when my boss left me alone for one week.
Fact
Aztecs believed that the sun died every night and needed human blood to give it strength to rise the next day. So they sacrificed 15,000 men a year to appease their sun god, Huitzilopochtli. Most of the victims were prisoners taken in wars, which were sometimes started solely to round up sacrificial victims.
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