 While in Babylonia, Darius learned a revolution had broken out in Bactria, a satrapy which had always been in favour of Darius, and had initially volunteered an army of soldiers to quell revolts.Following this, revolts broke out in Persis, the homeland of the Persians and Darius and then in Elam and Babylonia, followed by in Media, Parthia, Assyria, and Egypt.By 522 BCE, there were revolts against Darius in most parts of the Achaemenid Empire leaving the empire in turmoil.