1910 in History:
February 8 – William D. Boyce founds the Boy Scouts of America.
March 8 – In France Raymonde de Laroche is awarded pilot's license #36 by the Federation Aeronautique Internationale, becoming the first woman authorized to fly an airplane.
March 10 – Slavery in China, which has existed since the Shang dynasty, is now illegal.
March 18 – The first filmed version of Mary Shelley's Frankenstein comes out. Considered to be the first horror movie, it stars actor Charles Ogle as the monster.
April 20 – Comet Halley is visible from Earth. It won't be seen again until 1986.
May 6 – George V becomes King of the United Kingdom upon the death of his father, Edward VII.
May 12 – Second NAACP meeting is held in New York.
May 18 – The earth passes through the tail of Comet Halley.
October – First publication of infrared photographs, by Professor Robert Williams Wood in the Royal Photographic Society's journal.
November 7 – The first air flight for the purpose of delivering commercial freight takes place in the United States of America. The flight, made by Wright Brothers pilot Philip Parmalee between Dayton, Ohio and Columbus, Ohio.
November 20 – Mexican Revolution: Francisco I. Madero proclaims the elections of 1910 null and void, and calls for an armed revolution at 6 p.m. against the illegitimate presidency/dictatorship of Porfirio Díaz.
Late December – A form of pneumonic plague spreads through northeastern China, killing more than 40,000.
Henry Ford sells 10,000 automobiles.