U.S. intervenes in World War I, rejects membership of League of Nations.
1926 · Mammoth Cave is Discovered
In 1926, in central Kentucky, Mammoth Cave was discovered. It dates back to Mississippian times and consists of over four hundred miles of passageway. On July 1, 1941, the cave was made a National Park.
1935 · The FBI is Established
The Bureau of Investigation's name was changed to the Federal Bureau of Investigation to help citizens know that the Government is helping protect from threats both domestically and abroad.
1 English, Scottish, German, and Dutch: from Middle English, Middle High German, Middle Dutch horn ‘horn’, applied in a variety of senses: as a metonymic occupational name for someone who made small articles, such as combs, spoons, and window lights, out of horn; as a metonymic occupational name for someone who played a musical instrument made from the horn of an animal; as a topographic name for someone who lived by a horn-shaped spur of a hill or tongue of land in a bend of a river, or a habitational name from any of the places named with this element (for example, in England, Horne in Surrey on a spur of a hill and Horn in Rutland in a bend of a river); as a nickname, perhaps referring to some feature of a person's physical appearance, or denoting a cuckolded husband.2 Norwegian: habitational name from any of several farmsteads so named, from Old Norse horn ‘horn’, ‘spur of land’.3 Swedish: ornamental or topographic name from horn ‘horn’, ‘spur of land’.