Dated events associated with this case. Each event is a shared record: the same event appears identically wherever it is relevant.
· Constitutional change
The Polish Sejm granted the newly formed Silesian Voivodeship a broad autonomy statute, including its own parliament.
Significance here: Created the historic autonomous status that the modern Silesian Autonomy Movement seeks to restore or emulate.
· Organisation founded
A movement seeking to restore Silesian autonomy, later shifting toward advocating a regionalised Polish state, was founded.
Significance here: Established the leading modern vehicle for Silesian regionalist politics in Poland, with periodic regional assembly representation.
· Legal decision
A citizens' bill to recognise Silesians as an ethnic minority, signed by 140,000 people, was rejected by the Polish parliament.
Significance here: The most significant legislative attempt to date to secure formal minority status for Silesians, and its rejection.
Dates show their real precision. Approximate or uncertain dates are labelled and never converted into an exact day.