The 22nd Congress of the Communist Party of the Soviet Union (Russian: XXII съезд КПСС) was held from 17 to 31 October 1961. In fourteen days of sessions (22 October was a day off), 4,413 delegates, in addition to delegates from 83 foreign Communist parties, listened to Nikita Khrushchev and others review policy issues.[1][page needed] At the Congress, the Sino-Soviet split hardened, especially due to Soviet de-Stalinization efforts,[2][3] and it was the last Congress to be attended by the Chinese Communist Party. The Congress elected the 22nd Central Committee.