• The world's largest collection of nail clippers (505!) can be found in Parys, South Africa.
Source: National Geographic Kids

• Ancient Egyptians took up to 70 days to make a mummy.
Source: National Geographic Kids

• The Roman emperor Caligula wanted to make his horse a senator, according to ancient sources.
Source: National Geographic Kids

• The ancient Maya chewed gum made from tree sap.
Source: National Geographic Kids

• Did you know that the Aztecs played football - and sacrificed the losing team to the gods?
Source: 500 things to know about the ancient world book

• Some Roman toothpaste contained human urine.
Source: 500 things to know about the ancient world book

• Greek actors were all men. Women were probably not even allowed to watch plays.
Source: 500 things to know about the ancient world book

• The ancient Egyptian words for "son" and "daughter" were written with bird hieroglyphs and may really mean 'chick'.
Source: 500 things to know about the ancient world book