Passage: The campaign used a variety of nonviolent methods of confrontation, including sit-ins, kneel-ins at local churches, and a march to the county building to mark the beginning of a drive to register voters. The city, however, obtained an injunction barring all such protests. Convinced that the order was unconstitutional, the campaign defied it and prepared for mass arrests of its supporters. King elected to be among those arrested on April 12, 1963.While in jail, King wrote his famous "Letter from Birmingham Jail" on the margins of a newspaper, since he had not been allowed any writing paper while held in solitary confinement. Supporters appealed to the Kennedy administration, which intervened to obtain King's release. King was allowed to call his wife, who was recuperating at home after the birth of their fourth child and was released early on April 19.

Question: When was King arrested?
April 12, 1963