Did you know that…?
Diophantus of Alexandria, who lived around 200 BC, has been called the ‘father of algebra’.
His main work was a set of 13 books called Arithmeica. His books are the oldest known publications to focus on algebra.
Not much is known about Diophantus apart from a puzzle said to be on his tombstone.

If this puzzle is correct. And it may not be, then what age did Diophantus live to? What age did he marry? What age did he have his son?