Timeline
- August 27, 1922: founded in Berlin
- 1933: adopted Rodlo as symbol to challenge Nazis.
- March 6, 1938: The first congress in Berlin. Adopted 5 rules for Poles inside Germany.
- February 27, 1940: the union was made illegal by the Nazis and 1200 activists sent to concentration camps or prisons.
- 1945: reactivated.
Read more about this topic: Union Of Poles In Germany