Wars of the Diadochi
After the death of Alexander, his empire split into multiple kingdoms ruled by his generals, the Diadochi. The Diadochi fought against each other in a series of conflicts called the Wars of the Diadochi. In the beginning of the 2nd century BC, only three major kingdoms remained: the Ptolemaic Egypt, the Seleucid Empire and Macedonia. These kingdoms spread Greek culture to regions as far away as Bactria.