Answer:
18. The two generals met shortly after noon on April 9, 1865, at the home of Wilmer McLean in the village of Appomattox Court House, Virginia.
19. Sherman's March to the Sea was an American Civil War campaign lasting from November 15 to December 21, 1864, in which Union Major General William Tecumseh Sherman led troops through the Confederate state of Georgia, pillaging the countryside and destroying both military outposts and civilian properties.
20. The Civil War confirmed the single political entity of the United States, led to freedom for more than four million enslaved Americans, established a more powerful and centralized federal government