Short answers, pulled from the story.
The Munich Agreement was signed on the 30th of September 1938 by Chamberlain, French Prime Minister Daladier, Hitler, and Mussolini. It ceded the Sudetenland region of Czechoslovakia to Nazi Germany. Czechoslovakia was not represented at the conference table.
Chamberlain succeeded Stanley Baldwin as prime minister on the 28th of May 1937. He served until the 10th of May 1940, when he resigned following the Norway Debate in the House of Commons.
Chamberlain's government passed the Factories Act 1937, which limited working hours for women and children, the Coal Act 1938, the Holidays with Pay Act 1938, and the Housing Act 1938, which subsidised slum clearance. His plans for local government reform and raising the school-leaving age to 15 were shelved when war began in 1939.
Chamberlain died on the 9th of November 1940 of cancer, aged 71. He had resigned from the War Cabinet on the 22nd of September 1940 due to ill health, six months after leaving the premiership.
Chamberlain resigned on the 10th of May 1940 after the Norway Debate in Parliament greatly reduced his government's majority, with 38 government supporters voting against him. The Labour and Liberal parties refused to serve under his leadership, making a national unity government impossible without his departure.
Chamberlain's reputation remains controversial. The book Guilty Men, published in July 1940, set a highly critical tone that dominated historical writing for a generation. Later historians, using government papers released under the thirty-year rule, have argued that Britain was unprepared for war in 1938 and that a more favourable assessment of his options is defensible. Chamberlain is nonetheless still unfavourably ranked among British prime ministers.