The occupational classification that included doctors, lawyers, and dentists in 1880 was the 'professional service' category. It would not be agriculture, fisheries, and mining because those professions are not in that field.
The northern hemisphere? I don't completely understand the question.
Lincoln did not attend high school. Rather, he had about eighteen months of formal schooling before heading out on his own. From that point onward he was self taught.
Hope this helped a bit :)
The Battle of the Little Bighorn, fought on June 25, 1876, near the Little Bighorn River in Montana Territory, pitted federal troops led by Lieutenant Colonel George Armstrong Custer (1839-76) against a band of Lakota Sioux and Cheyenne warriors. Tensions between the two groups had been rising since the discovery of gold on Native American lands. When a number of tribes missed a federal deadline to move to reservations, the U.S. Army, including Custer and his 7th Calvary, was dispatched to confront them.
