Shortly after his election (November 1860) the state of South Carolina seceded from the USA (20 December) and was soon followed by 5 other southern states.
The civil war did not actually start until April 1861,some months after the election of Lincoln.
6) Think about this one for a second. Ships have carried guns since antiquity, and were nothing new in the civil war. Aircraft were invented in 1903, and aircraft carriers really only appeared in force during world war two. Wooden ships have been around since antiquity as well. As such, the only answer is metal-covered ships.
7) Again, use elimination to rule one of these out. A vast military knowledge would not hurt the Union forces. The answer is he was too cautious, because he was fairly inactive as a General and often retreated despite having numerical superiority.
