Categories: Biographical notes
Claudius Ptolemy was a Greek scholar who lived in the second century A.D., who was a mathematician, geographer, and most famously an astronomer. Like many astronomers before the modern period, he was also an astronomer. His most well-known work, known as 'the Almagest' set out a model of the universe which was widely accepted as the scientific model for many centuries. This was a geocentric model – the Earth was considered to be at the fixed centre of the World around which the celestial bodies (the sun and planets, and the stars) rotated on a series of concentric spheres.
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