events
Pappus of Alexandria, Greek philosopher, observes an eclipse of the Sun and writes a commentary on The Great Astronomer (Almagest).
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Pappus of Alexandria
4th-century Greek mathematician (c. 290–350)
Pappus of Alexandria was a Greek mathematician of late antiquity known for his Synagoge (Συναγωγή) or Collection, and for Pappus's hexagon theorem in projective geometry. Almost nothing is known about his life except for what can be found in his own writings, many of which are…Source: Wikipedia (CC BY-SA)
Solar eclipse
Natural phenomenon wherein the Sun is obscured by the Moon
A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby obscuring the view of the Sun from a small part of Earth, totally or partially. Such an alignment occurs approximately every six months, during the eclipse season in its new moon phase, when the…Source: Wikipedia (CC BY-SA)
Almagest
Astronomical treatise by Claudius Ptolemy
The Almagest is a 2nd-century mathematical and astronomical treatise on the apparent motions of the stars and planetary paths, written by Claudius Ptolemy in Koine Greek. One of the most influential scientific texts in history, it canonized a geocentric model of the Universe…Source: Wikipedia (CC BY-SA)