Are yams and sweet potatoes the same?
city, Samara oblast (province), western Russia. It lies along the Volga River at the latter's confluence with the Syzran River. Founded in 1683 as a stronghold at the eastern end of the Syzran defensive line, the city is a significant river port and an important centre of the western Volga-Urals oil field. Oil refining, manufacture of chemicals, glassmaking, timber working, and food processing are the city's principal industries. Pop. (1993 est.) 175,900