May 24, 1844 – Samuel FB Morse taps out “What hath God wrought” in the first message from an official telegraph office located in the basement of the U. S. Capital building which was then received at a Baltimore and Ohio Railroad Station in Baltimore.
May 25, 1787 – The Colonial Constitutional Convention began in Philadelphia with delegates from seven states forming a quorum.
May 26, 1940 – The Dunkirk evacuation began on the northern coast of France to save Allied forces trapped by the German Army. Vessels of all shapes and sizes ferried over 340,000 soldiers across the English Channel concluding on June 2.
May 27, 1937 – More than 200,000 people celebrate the grand opening of the Golden Gate Bridge in San Francisco.