Apatosaurus opponent of Marsh and his taxa, labeled the "Apatosaurus" mount of the American Museum of Natural History "Brontosaurus". Because of this decision the name "Brontosaurus" was commonly used outside of scientific literature for what Riggs considered "Apatosaurus", and the museum's popularity meant that "Brontosaurus" became one of the best known dinosaurs, even though it was invalid throughout nearly all of the 20th and early 21st centuries. It was not until 1909 that an "Apatosaurus" skull was found during the first expedition, led by Earl Douglass, to what would become known as the Carnegie Quarry at Dinosaur National Monument. The skull
Tomb of the Known Soldier military burial in France. Charles’ mother received the telegram from the War Department that her son was killed in the war. After waiting four long years, she finally claimed her son’s body when it arrived on a troopship called the "Cambria" on March 29, 1922. The U.S. Government had the idea of creating the Tomb of the Unknown Soldier and of a "Known Soldier" in Arlington National Cemetery to honor World War I soldiers. Graves was chosen for "America's Known Soldier" by a blindfolded sailor who picked Graves' name from an American soldier remains list, but his mother objected to