Mariupol (Ukrainian: Маріу́поль [mɑrʲiˈupɔlʲ], also Ukrainian: Маріюпіль, translit. Mariiupil [mɑrʲiˈjupilʲ]; Russian: Мариу́поль [mərʲɪˈupəlʲ]; Greek: Μαριούπολη, translit. Marioupoli) is a city of regional significance in south eastern Ukraine, situated on the north coast of the Sea of Azov at the mouth of the Kalmius river, in the Pryazovia region. It is the tenth-largest city in Ukraine, and the second largest in the Donetsk Oblast with a population of 449,498 (2017 est.). The city is largely and traditionally Russophone, while ethnically the population is divided about evenly between Russians and Ukrainians. Mariupol was founded on the site of a former Cossack encampment named Kalmius and granted city rights in 1778. It has been a centre for the grain trade, metallurgy, and heavy engineering, including the Illich Steel & Iron Works and Azovstal. Mariupol has played a key role in the industrialization of Ukraine.