Premise: Sanation (Polish: "Sanacja" , ] ) was a Polish political movement that was created in the interwar period, prior to Józef Piłsudski's May 1926 "Coup d'État", and came to power in the wake of that coup. In 1928 its political activists would go on to form the Nonpartisan Bloc for Cooperation with the Government (""BBWR"").
Hypothesis: Sanation was created before 1928.