There is a 600 year old 240 paged book called the Voynich Manuscript, that’s written language is still completely unknown today.
15
The oldest stone tools found are dated from 2.7 - 2.9 million years ago. The species that made these tools is unknown.
13
Harry S. Truman was the last U.S. President with no college degree.
55
The universally popular Hershey bar was used overseas during World War II as currency.
112
The University of Oxford (teaching since 1096) predates the Aztec empire (1428 - 1521).
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