Anno Testimonii
Help her finish her letters. Your support funds the research and testing that make this quantifiable and authentic.Support

Eratosthenes and Aristarchus

THE HISTORICAL RECORD  ·  c. 240 BC  ·  Near-East

Home › Timeline › The Prophets and the Road › Eratosthenes and Aristarchus

Eratosthenes measures the Earth from two shadows. Aristarchus proposes heliocentrism, and it is not adopted for eighteen hundred years.

In plain words

Eratosthenes measures the Earth from two shadows; Aristarchus puts the Sun at the centre, and the idea is not adopted for eighteen hundred years. The seat of authority starts to move toward reason, and being right turns out not to be enough.

The mechanism

THE SEAT BEGINS TO MOVE — from the king is a god toward reason says, trading the crown for the coat of demonstration; and being right turns out not to be sufficient

How it was checked

The whole timelineThe Prophets and the RoadThe historical recordAll eras