When did Andrew Johnson retired

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The impeachment of Andrew Johnson was initiated on February 24, 1868, when the United States House of Representatives resolved to impeach Andrew Johnson, the 17th president of the United States, for "high crimes and misdemeanors," which were detailed in 11 articles of impeachment. The primary charge against Johnson was violation of the Tenure of Office Act, passed by Congress in March 1867, over his veto. Specifically, he had removed from office Edwin M. Stanton, the secretary of war—whom the act was largely designed to protect—and attempted to replace him with Brevet Major General Lorenzo Thomas. (Earlier, while the Congress was not in session, Johnson had suspended Stanton and appointed General Ulysses S. Grant as secretary of war ad interim.)

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