Thread:Duwiiton/@comment-2600:1017:B00C:29B3:682C:F8:8601:144C-20190924121937/@comment-2600:1017:B02E:1AF1:4007:8E2D:68E9:4344-20190924205205

Calculus is a western invention that helped Europe take over the orientals in the opium wars and boxer rebellion