Flag this claim
You’re flagging the claim:
“Aryabhata (499 CE) gives the diameter of the Earth as 1,050 yojanas (~13,200 km using ~12.5 km/yojana), within ~3% of the modern value of 12,742 km — a striking pre-modern measurement.”
A counter-source is required. Flags without sources are disregarded — this filters frivolous flagging and ensures editorial can act on the flag.