Explanation

Mariupol is a city in Donetsk Oblast, Ukraine.

Founded: 1778

It is situated at the mouth of the Kalmius River 

It was the tenth-largest city in the country 

Districts

1. Kalmiuskyi Raion
2. Livoberezhnyi Raion
3. Prymorskyi Raion
4. Tsentralnyi Raion