When it merged with Tanganyika in 1964, which country was then the world's last alphabetically?

At the Panthéon in Paris in 1851, which physicist demonstrated the Earth's rotation with his famous pendulum? At the Paris Observatory in the 1670s, observations led to the first estimate of the speed of what? Disney's 2000 update of which 1940 animated classic kept just one segment from the original, Mickey Mouse's "Sorcerer's… At the 1904 St. Louis World's Fair, which Apache leader signed and sold autographs? At the time of her 1937 disappearance, which aviator was married to publisher George Palmer Putnam? At the time of his 1902 nomination to the U.S. Supreme Court, which judge was chief justice of Massachusetts? At the time of his assassination on April 14, 1865, which president had a Confederate $5 bill in his pocket? At the time of his death in 1227, whose Mongol empire stretched from Beijing to the Caspian Sea?