General
Population: Between 190 and 230 million*
- Births: Demosthenes (384 BC), Aristotle (384 BC)
- Philosophy: Plato writes Symposium (387 BC)
Plato's Republic written (380 BC)
- Warfare: Artaxerxes II of Persia takes Greek cities (387 BC)
Spartan ruler Antalcidas negotiates peace with Persia and forces Greek states to agree to it (386 BC)
- Deaths: Aristophanes (387 BC)
M. Manilus Capitolinus thrown from the Tarpeian rock (384 BC)
Africa
- Egypt: Start of last native house, the 30th Dynasty until 343 BC (380 BC)
Europe
- Italian States: Romans flee before Gauls (387 BC)
Rome rebuilt after Gallic invasion (387 BC)
City walls built around Rome (380 BC)
Middle East
- Persia: Persia takes Greek cities and dictates Greek peace (King's Peace) (387 BC)