 The Rigveda refers to "Kubha" as an "ideal city" and a vision of paradise set in the mountains and is full of poems in praise of the city.The Kabul valley was part of the Median Empire (c. 678-549 BC).In 549 BC, the Median Empire was annexed by Cyrus The Great and Kabul became part the Achaemenid Empire (c. 550–330 BC).