Polish Social Democratic Union
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| Closed date | 1992 |
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| Founded | 1990 |
| Date of Reg. | |
| Date of Upd. | |
| ID | 4186674 |
About Polish Social Democratic Union
The Polish Social Democratic Union was a social-democratic political party in Poland that existed from 1989 to 1992. It was founded in 1989 under the name Social Democratic Union, under the leadership of Tadeusz Fiszbach with 25 parliamentary deputies, and changed its name in 1990.