The Polish Constitution of 1935 is adopted.

The Polish Constitution of 1935, officially known as the April Constitution, was adopted on April 23, 1935, during a period of authoritarian rule in Poland. It represented a significant departure from the more democratic March Constitution of 1921 and is often seen as a move to consolidate power under Józef Pi?sudski and his successors.

Strengthening of the Executive: The president was granted extensive powers, including the authority to issue decrees, appoint the Prime Minister and other key officials, dissolve parliament, and command the armed forces.
Weak Legislature: The Sejm (lower house) and Senate’s roles were significantly diminished, with the Sejm having limited legislative powers and a reduced ability to check the executive.
Limited Civil Liberties: The constitution placed constraints on civil liberties and allowed for government control over the political life in Poland.
Direct Election of the President: Unlike the earlier system, the president was to be elected directly by the people, though the first president under this constitution was elected by the assembly due to the transition provisions.

The adoption of this constitution marked a shift towards an authoritarian regime, effectively reducing the influence of the legislature and judiciary while centralizing power in the hands of the president. The 1935 Constitution remained in effect until the German and Soviet invasions of Poland in 1939. Its introduction is often seen as a reflection of the turbulent interwar period in Poland and the broader European context of rising authoritarianism.