Eratosthenes:

He who knows the positions of the stars knows the circumference of the Earth.

— Eratosthenes Ancient

Calculated Earth's circumference

Connecting astronomy with geodetic measurements.

c. 240 BCE

Verification

Unverifiable

Found in 1 providers: grok

Cross Reference

1 source

"One must combine practical observation with theoretical understanding."

"The world is divided by zones, temperate, torrid, and frigid."

"Geography is the study of the Earth as the home of man."

"The world is one, and it is governed by a single reason."

"The library at Alexandria is the greatest treasure in the world."