Dashed left edge = started before February 1868 ·
Dashed right edge = ongoing beyond February 1868
Events in February 1868 1
1868Impeachment of Andrew JohnsonFirst impeachment of a sitting US presidentThe House of Representatives impeached President Andrew Johnson, chiefly over his violation of the Tenure of Office Act in dismissing Secretary of War Edwin Stanton. The Senate trial concluded in May with Johnson acquitted by a single vote. It was the first impeachment of a sitting US president.