Claudius Ptolemaeus

There have been two scientific theories of astronomy, one by Ptolemy (or Claudius Ptolemaeus or Klaudios Ptolemaios) who lived from 87 to 170 AD, the other by Nicolaus Copernicus (1473-1543) Both theories were scientific because both were based on observations and both could be checked against the actual movements of the stars and thus could be confirmed or disproven.

A review of "Expelled," a film by and starring Ben Stein 2009

The most distinguished astronomer of antiquity, Claudius Ptolemaeus, was also a zealous astrologer.

The Catholic Encyclopedia, Volume 2: Assizes-Browne 1840-1916 1913

Heraclitus of Halicarnassus; the other, no less noble, though it has not the piercing tenderness of the first, by Claudius Ptolemaeus, the great astronomer, upon his own science, a science then not yet divorced from art and letters.

Select Epigrams from the Greek Anthology Anonymous 1902

Lastly, it is to be noted that the list of Babylonian kings found in the famous astronomical work of Claudius Ptolemaeus, valuable as it is for historical purposes, has no connection with the religion of the Babylonians.

The Religion of Babylonia and Assyria Morris Jastrow 1891

"No less a man than the astronomer Claudius Ptolemaeus referred me to him."

Complete Project Gutenberg Georg Ebers Works Georg Ebers 1867

"No less a man than the astronomer Claudius Ptolemaeus referred me to him."

The Emperor — Complete Georg Ebers 1867

"No less a man than the astronomer Claudius Ptolemaeus referred me to him."

The Emperor — Volume 09 Georg Ebers 1867

"No less a man than the astronomer Claudius Ptolemaeus referred me to him."

The Emperor — Volume 09 Georg Ebers 1867

"No less a man than the astronomer Claudius Ptolemaeus referred me to him."

The Emperor — Volume 09 Georg Ebers 1867

Eratosthenes, where Claudius Ptolemaeus had watched and worked.

Serapis — Complete Georg Ebers 1867