Within the years 287-212 BC
Archimedes made pi more precise
i think it was Archimedes.
Archimedes first used the symbol PI because he was the first one to discover it so he wanted to investigate about it.
Archimedes
Pi
Archimedes
Archimedes
Archimedes and the Greeks
becase it can be
yes
Archimedes
Archimedes.