351 BC Chr.

351 BC Chr.
Demosthenes probably gives the first of his speeches ...	... against Philip II of Macedonia .
351 BC Chr. In other calendars
Buddhist calendar	193/194 (southern Buddhism); 192/193 (alternative calculation according to Buddha's Parinirvana )
Chinese calendar	39th (40th) cycle , year of the metal horse庚午 ( at the beginning of the year earth-serpent 己巳)
Greek calendar	1./2. Year of the 107th Olympiad
Jewish calendar	3410/11
Roman calendar	from urbe condita CDIII (403)

Events

Gaius Sulpicius Peticus and Tiberius Quinctius Pennus Capitolinus Crispinus become Roman consuls .
For the first time, the office of Roman censor is given to a patrician and a plebeian . The patrician is Gnaeus Manlius Capitolinus Imperiosus, the plebeian Gaius Marcius Rutilus .
The Roman Republic conquered Etruria / Tuszien , which is located in Tuscany.

Jean Lecomte du Nouÿ : Demosthenes practices speaking (1870)

The Athenian politician Demosthenes gives the first of his speeches against Philip II ( Philippika ).
Fighting broke out on the Chersonese peninsula between the Athenians under Charidemos and the Macedonians . Also Selymbria is allied with Athens.

The revolt of the already since 412 BC . Chr virtually independent Egypt expands eastwards: Even Syria, Phenicia and Cyprus rise against the Persian king Artaxerxes III.
Vahe becomes the new king of Armenia .

351/350 BC Chr . : Idrieus becomes satrap of Caria after the death of his sister Artemisia II . He rules together with his sister and wife Ada .