What is associated with: 1861 1865?

What is associated with: 1857 song that includes the line bells on bob tail ring? What is associated with: 1859 this author receives his steamboat pilots license? What is associated with: 1860 christopher spencers breech loading repeating this? What is associated with: 1860s book bolkonsky rostova read in a day not? What is associated with: 1861 this state seceded prompting jefferson davis to leave the us senate? What is associated with: 1862 and sons? What is associated with: 1862 lincoln orders this man out as commander of the army of the potomac? What is associated with: 1862 second bull run?