Are yams and sweet potatoes the same?
city, Tambov oblast (province), western Russia, on the Lesnoy Voronezh River. Founded in 1636 as a fortress named Kozlov, it was chartered in 1779. Locomotive repair works reflect its junction position, and there are vegetable- and fruit-processing industries. It is a horticulture centre, with an institute founded by the Soviet scientist I.V. Michurin, who lived there until 1935 and after whom the city is named. Pop. (1991 est.) 109,400