Nineveh, the Capital City of the Assyrians

The book of jonah starts by god, saint jonah, i need you go to nineveh. Nineveh is the capital city of the assyrians who just conquered them. Jonah began by going a day's journey into the city and proclaiming that forty more days in nineveh will be overthrown. A fast was proclaimed, and all of them, from the greatest to the least, put on sackcloth. So that was his great prophetic message. Forty days and the city of nineveh willbe overthrown.