Xenophon of Athens, said to have lived about 430 - 354 BC, was a soldier and historian.
He is known for his writings on the history of his own times, the 4th century BC, preserving the sayings of Socrates, and the life of ancient Greece.
His "Hellenica" is a major primary source for events in Greece from 411 to 362 BC.
Xenophon was later exiled from Athens, most likely because he fought under the Spartan king Agesilaus II against Athens at Coronea.
The Spartans gave him property at Scillus, near Olympia in Elis, where he composed the "Anabasis", his most famous work.
Xenophon had a fond love of Athens but didn't believe in its political morals, which leads us to believe that he was an oligarch (ref.1).
Therefore it might be an eyewitness report when he writes in his "Hellenica" (ref.2):
"Next day he (Agesilaus) crossed the mountains of Achaea Phthiotis and for the future continued his march through friendly territories until he reached the confines of Boeotia.
Here at the entrance of that territory, the Sun seemed to appear in a crescent shape.... "
The same event is also reported by Plutarch in his "Life of Agesilaus" (ref.3):
"Agesilaus now marched through the pass of Thermopylae, traversed Phocis, which was friendly to Sparta, entered Boeotia, and encamped near Chaeroneia. Here a partial eclipse of the Sun occurred...
After advancing as far as Coroneia and coming in sight of the enemy... "
The year of the battle at Coroneia is given as the second year of the 96th Olympiad, and thus 395/4 BC in our chronology.
What happened and what are we looking for?