 In the 1950s the remaining Polish minority was a target of several attempted campaigns of Lithuanization by the Communist Party of Lithuania, which tried to ban any teaching in the Polish language; those attempts, however, were vetoed by Moscow, which saw them as too nationalistic.The Soviet census of 1959 showed 230,100 Poles concentrated in the Vilnius region (8.5% of the Lithuanian SSR's population).The Polish minority increased in size, but more slowly than other ethnic groups in Lithuania; the last Soviet census of 1989 showed 258,000 Poles (7.0% of the Lithuanian SSR's population).