The universally popular Hershey bar was used overseas during World War II as currency.
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There is a 600 year old 240 paged book called the Voynich Manuscript, that’s written language is still completely unknown today.
15
February 1865 is the only month in recorded history to not have a full moon.
83
Two dogs were among the Titanic survivors.
262
The oldest stone tools found are dated from 2.7 - 2.9 million years ago. The species that made these tools is unknown.
13