jan 1, 500 BC - Panini standardizes the grammar and morphology of Sanskrit in the text Ashtadhyayi.
Description:
Panini's standardized Sanskrit is known as Classical Sanskrit.https://en.wikipedia.org/wiki/P%C4%81%E1%B9%87ini
https://en.wikipedia.org/wiki/Sanskrit#Classical_Sanskrit
https://en.wikipedia.org/wiki/A%E1%B9%A3%E1%B9%AD%C4%81dhy%C4%81y%C4%AB
Added to timeline:
Date:
jan 1, 500 BC
Now
~ 2527 years ago