>The pages belonged to The Almagest, in which second century polymath Claudius Ptolemy described his vision of an Earth-centered cosmos.

Where's the article wrong?

I clicked just to make this same pedantic comment, fellow traveller.

pedantry works best when correct.

"Ancient history is a time period from the beginning of writing and recorded human history through late antiquity."

Perhaps you are mixing up "ancient" and "prehistoric".