The year 525 BC was a year of the pre-Julian Roman calendar. In the Roman Empire, it was known as year 229 Ab urbe condita. The denomination 525 BC for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.
Events
By place
Egypt
- Battle of Pelusium - Cambyses II of Persia conquers Egypt by painting cats and other animals sacred to the Egyptians on his soldiers' shields. The Egyptians run in fear of "harming" these animals. It is said that after the battle, Cambyses hurled cats in the faces of the Egyptians in scorn that they would sacrifice their country for the safety of their animals.
- Cambyses takes Psamtik III prisoner and treats him kindly until he tries to raise a revolt, at which point Psamtik is executed.
Astronomy
- September 17 - Venus occults Antares. The next such occurrence will not take place until November 17, 2400 AD.
Births
- Aeschylus, author of Greek tragedies
Deaths
- Psammetichus III, Egyptian pharaoh
- Anaximenes of Miletus, Greek scientist and philosopher (b. 585 BC)