In 334 he took over the invasion project after his father Philip II was assassinated and crossed over into Asia Minor.
In 336 BCE after his father's death, when he took over his father's plan to conquer the Persian Empire.
It started about 550 BCE, and was effectively taken over by Alexander the Great by 331 BCE.
His first conquest began in the spring of 335 BC.
His first conquest began in the spring of 335 BC.
The Persian Empire (also known as the Achaemenid Empire) existed 550 to 330 BCE.
The Persian empire was established by Cyrus the Great in 6th century BC
By taking the eastern Mediterranean coast to secure his base and source of soldiers, and to ensure no naval invasion of Greece, and then turning to destroy the main Persian army.
550-330 BC
550-350 bc
The Greek city-states in Asia Minor within the Persian Empire revolted.
After uniting Persia and Media, he conquered the Babylonian Empire.
In 50 BCE, when Cyrus the Great began expansion after incorporating Media under Persian control.