Pythagoras was about 69 this year and would die in about a further 25 years.
Panini was about 20 this year and would die in about a further 40 years.

There were 2 mathematicians in our archive alive in the year 500 BC.

800 BC - 700 AD   600 - 1500   1450 - 1700   1650 - 1800   1750 - 1850   1825 - 1900   1875 - 1960