Some info about RUSSIAN
Category
GEOGRAPHY - PLACES
Rostov-on-Don from the Sea of Azov, directly north of the North Caucasus. The southwestern suburbs of the city lie above the Don river delta. Rostov-on-Don has a population of over one million people and is an important cultural center of Southern Russia.
Wikipedia contributors, "Rostov-na-Donu," Wikipedia, The Free Encyclopedia,
ABOUT THE RUSSIAN LANGUAGE