Just looking at History for the month of May.
Look what I found.

May 09, 1916 - U.S. President Woodrow Wilson ordered the militias of Texas, New Mexico and Arizona to mobilize and serve on the Mexican border.

May 09, 1954 - In New York, the Ronald Reagan movie "Prisoner of War" opened.

May 09, 1974 - The House Judiciary Committee began formal hearings on the Nixon impeachment.