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Magadha, also called the Kingdom of Magadha or the Magadha Empire, was a kingdom and empire, and one of the sixteen of the Second Urbanization, based in southern Bihar in the eastern Ganges Plain, in Ancient India. Magadha was ruled by the Brihadratha dynasty, the Haryanka dynasty (544–413 BCE), the Shaishunaga dynasty (413–345 BCE), the Nanda dynasty (345–322 BCE), the Mauryan dynasty (322–184 BCE), the Shunga dynasty (184–73 BCE) and the Kanva dynasty (73–28 BCE). It lost much of it territories after being defeated by the Satavahanas of Deccan in 28 BC and was reduced to a small principality around Pataliputra. Under the Mauryas, Magadha became a pan-Indian empire, covering large swaths of the Indian subcontinent and Afghanistan.