Peanut butter and jelly sandwiches were originally considered a delicacy, only enjoyed by those of the upper class.
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The oldest stone tools found are dated from 2.7 - 2.9 million years ago. The species that made these tools is unknown.
13
When you look up at the blue sky and see white dots flying around, you’re actually seeing your own white blood cells.
30
The United States does not have an official language.
88
A human being loses an average of 40 to 100 strands of hair a day.
133
Switching letters is called spoonerism. For example, saying "jag of Flapan", instead of "flag of Japan".
2