The House's primary charge against Johnson was violation of the Tenure of Office Act, passed by the U.S. Congress in March 1867, over the president's veto.
Answer
No idea
Explanation
The person in question is Woodrow Wilson:
He was the president of the United States from 1913 to 1921, which means that he was the president before, during and after the First World War.
He was very active in the peace process after the war, including proposing the formation of the League of Nations.