France adopts the constitution of the Fourth Republic.

A constitutional referendum was held in France on 13 October 1946. Voters were asked whether they approved of a new constitution proposed by the Constituent Assembly elected in June. Unlike the May referendum, which saw a previous constitutional proposal rejected, the new Constitution of 27 October 1946 was accepted by 53% of voters, and brought the Fourth Republic into existence. Voter turnout was 68%.

The French Fourth Republic was the republican government of France from 27 October 1946 to 4 October 1958, governed by the fourth republican constitution of 13 October 1946. Essentially a reestablishment and continuation of the French Third Republic which governed from 1870 during the Franco-Prussian War to 1940 during World War II, it suffered many of the same problems which led to its end. The French Fourth Republic was a parliamentary republic.