Answer:1800–1842. 1821: Spain cedes Florida to United States (Adams–Onís Treaty).
Answer:
Abraham Lincoln, passed the 13th Amendment which was the first of the Reconstruction Amendments and legally abolished the practice of slavery. Surrender at Appomattox - On April 9th, Robert E. Lee's forces surrendered to Ulysses S
Explanation:
The alliance system in Europe basically was if one country went to war, all of the other countries in that alliance would back up their buddy and go to war as well. This is what happened when Archduke Franz Ferdinand was assassinated and Austria-Hungary was arguing with Bosnia and each of their alliances go pulled in with them too.
