10 [23] Oct 1917 Politburo elected by the Central Committee: Bubnov,
Zinov'ev, Kamenev, Lenin, Sokol'nikov, Stalin and Trockij
Oct 1917 Political bureau ceased to function after the success of the
Bolshevik coup in Petrograd (25 Oct [7 Nov] 1917)
25 Mar 1919 Politburo elected by the Central Committee: full members -
Kamenev, Krestinskij, Lenin, Stalin, Trockij; candidate members -
Buharin, Zinov'ev, Kalinin
Jul - Sep 1919 According to an agreement between the Politburo and the
Orgburo, chief secretary of the Central Committee Stasova temporarily
joined the Politburo from July to Sept 1919
5 Apr 1920 Politburo elected by the Central Committee: full members -
Kamenev, Krestinskij, Lenin, Stalin, Trockij; candidate members -
Buharin, Zinov'ev and Kalinin
16 Mar 1921 Politburo elected by the Central Committee: full members -
Zinov'ev, Kamenev, Lenin, Stalin, Trockij; candidate members -
Buharin, Kalinin, Molotov
3 Apr 1922 Politburo elected by the Central Committee: full members -
Zinov'ev, Kamenev, Lenin, Rykov, Stalin, Tomskij, Trockij; candidate
members - Buharin, Kalinin, Molotov
26 Apr 1923 Politburo elected by the Central Committee: full members -
Zinov'ev, Kamenev, Lenin, Rykov, Stalin, Tomskij, Trockij; candidate
members - Buharin, Kalinin, Molotov, Rudzutak
21 Jan 1924 Lenin died
2 Jun 1924 Politburo elected by the Central Committee: full members -
Buharin, Zinov'ev, Kamenev, Rykov, Stalin, Tomskij, Trockij; candidate
members - DzerĹžinskij, Kalinin, Molotov, Rudzutak, Sokol'nikov, Frunze
31 Oct 1925 Frunze died
1 Jan 1926 Politburo elected by the Central Committee: full members -
Buharin, VoroĹĄilov, Zinov'ev, Kalinin, Molotov, Rykov, Stalin,
Tomskij, Trockij; candidate members - DzerĹžinskij, Kamenev,
Petrovskij, Rudzutak, Uglanov
20 Jul 1926 DzerĹžinskij died
23 Jul 1926 Zinov'ev relieved of duties at the Central Committee
plenum; Rudzutak elected full member; candidate members re-elected:
Andreev, Kaganovič, Kamenev, Kirov, Mikojan, Ordžonikidze, Petrovskij,
Uglanov
23 Oct 1926 Trockij and Kamenev relieved of duties at the joint plenum
of the Central Committee and the Central Control Commission
3 Nov 1926 OrdĹžonikidze relieved of duties at the joint plenum of the
Central Committee and the Central Control Commission; Čubar elected
candidate member
19 Dec 1927 Politburo elected by the Central Committee: full members -
Buharin, VoroĹĄilov, Kalinin, KujbyĹĄev, Molotov, Rykov, Rudzutak,
Stalin, Tomskij; candidate members - Andreev, Kaganovič, Kirov,
Kosior, Mikojan, Petrovskij, Uglanov, Čubar
29 Apr 1929 Uglanov relieved of duties at the Central Committee
plenum; Bauman elected candidate member
21 Jun 1929 Syrcov elected candidate member at the Central Committee
plenum
17 Nov 1929 Buharin relieved of duties at the Central Committee plenum
13 Jul 1930 Politburo elected by the Central Committee: full members -
Vorošilov, Kaganovič, Kalinin, Kirov, Kosior, Kujbyšev, Molotov,
Rudzutak, Rykov, Stalin; candidate members - Andreev, Mikojan,
Petrovskij, Syrcov, Čubar
1 Dec 1930 Syrcov relieved of duties by questionnaire [1] at the
Central Committee plenum
21 Dec 1930 Rykov and Andreev relieved of duties at the joint plenum
of the Central Committee and the Central Control Commission;
OrdĹžonikidze elected full member
4 Feb 1932 Rudzutak relieved of duties at the Central Committee
plenum; Andreev elected full member
10 Feb 1934 Politburo elected by the Central Committee: full members -
Andreev, Vorošilov, Kaganovič, Kalinin, Kirov, Kosior, Kujbyšev,
Molotov, OrdĹžonikidze, Stalin; candidate members - Mikojan,
Petrovskij, Postyšev, Rudzutak, Čubar
1 Dec 1934 Kirov assassinated
25 Jan 1935 KujbyĹĄev died
1 Feb 1935 Mikojan and Čubar elected full members at the Central
Committee plenum, Ždanov and Èjhe elected candidate members
18 Feb 1937 OrdĹžonikidze committed suicide
26 May 1937 Rudzutak expelled from the Central Committee and party by
questionnaire (arrested 25 May 1937)
12 Oct 1937 EĹžov elected candidate member at the Central Committee
plenum
14 Jan 1938 PostyĹĄev relieved of duties at the Central Committee
plenum; Hruščëv elected candidate member
29 Apr 1938 Èjhe arrested (executed 4 Feb 1940)
3 May 1938 Kosior arrested (executed 26 Feb 1939)
16 Jun 1938 Čubar relieved of duties by resolution of the Politburo
22 Mar 1939 Politburo elected by the Central Committee: full members -
Andreev, Vorošilov, Ždanov, Kaganovič, Kalinin, Mikojan, Molotov,
Stalin, Hruščëv; candidate members - Berija, Švernik
21 Feb 1941 Voznesenskij, Malenkov and Ščerbakov elected candidate
members at the Central Committee plenum
10 May 1945 Ščerbakov died
18 Mar 1946 Berija and Malenkov elected full members, Bulganin and
Kosygin candidate members at the Central Committee plenum
3 Jun 1946 Kalinin died
26 Feb 1947 Voznesenskij elected full member at the Central Committee
plenum
18 Feb 1948 Bulganin approved full member by questionnaire
31 Aug 1948 Ždanov died
4 Sep 1948 Kosygin approved full member by questionnaire
7 Mar 1949 Voznesenskij relieved of duties by questionnaire