Abdication Crisis: Edward VIII signs the Instrument of Abdication.

In early December 1936, a constitutional crisis in the British Empire arose when King Edward VIII proposed to marry Wallis Simpson, an American socialite who was divorced from her first husband and was in the process of divorcing her second.

Edward VIII, later known as the Duke of Windsor, was King of the United Kingdom and the British Dominions, and Emperor of India, from 20 January 1936 until his abdication in December of the same year.