Attalid dynasty
The Macedonian King Philip II (350-336) conquered much of Greece. In 338, he formed the League of Corinth to liberate Greeks in Asia Minor from the Persians, with 10,000 troops invading in 336. After his murder, his son Alexander the Great took charge and crossed the Dardanelles in 334. After Asia Minor had been conquered, Alexander invaded Levant, Egypt, and Mesopotamia, defeating the Persians under Darius the Great in the Battle of Gaugamela in 331, and ending the last resistance by 328. After Alexander's death in Babylon in 323, the empire had no designated successor. This led to its division into four: the Antigonid dynasty in Macedonia, the Attalid dynasty in Anatolia, the Ptolemaic Kingdom in Egypt, and the Seleucid Empire over Mesopotamia.