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Heads of state of the Soviet Union |
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Central Executive Committee Chairmen,
1922-38* |
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Supreme Soviet Presidium Chairmen,
1938-89 |
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Supreme Soviet Chairmen,
1989-91 |
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President,
1990-91 |
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Italics indicates Acting Chairman
*Position held jointly by four, not consecutively
**Not considered as head of state because the post President had been established. |