I thought Nineveh was destroyed in 612 B.C., by a combined force of Medes, Babylonians and Scythians. Who rebuilt it, and when?
Following the defeat in 612 BC, the site remained largely unoccupied for centuries with only a scattering of Assyrians living amid the ruins until the Sassanian period, although Assyrians continue to live in the surrounding area to this day. The city is mentioned again in the Battle of Nineveh in 627 AD, which was fought between the Eastern Roman Empire and the Sassanian Empire of Persia near the ancient city. From the Arab Islamic Conquest in 637 AD until the modern period, the city of Mosul on the opposite bank of the river Tigris became the successor of ancient Nineveh.