The document summarizes several historical dynasties that ruled the Gandhara civilization region, including the Mauryan Empire from 322-185 BC with important rulers Chandragupta Maurya and Ashoka; the Indo-Greek Kingdom from 180 BC to 10 AD; the Kushan Empire from the 1st to 3rd century CE under Kanishka; the Hindu-Shahi kingdom from the 7th to 11th century CE under Jayapala; and the Ghaznavid Empire from 977-1186 CE known for military campaigns under Mahmud of Ghazni.