How many years did the American Civil War last?
4
5
5
5
5
4
5
4
3
5
4
3
5
4
3
5
4
3
2
5
4
3
2
1861
5
7
4
3
2
5
1861
7
4
3
2
5
11
7
365
6
4
3
2
5
3 years
11
1861
7 years
7
6
365
4
3
2
10
5
11
7
5 years
6
4
3
2
10
5
365
11
1861
58
4 years
7
66
1862
6
62
4
3
2
9
10
5
11
7
3 years
365
6
13
7 years
58
66
4
3
2
9
10
5
16
61
11
7
8
1862
6
13
62
365
4
3
2
9
1861
10
5
58
57
66
25
16
11
20
7
3 years
8
6
13
1
7 years
4
3
2
9
10
5
25
365
16
61
11
20
58
57
7
66
8
1862
6
13
1
62
4
3
2
9
10
5
25
59
17
16
11
20
7
3 years
365
8
63
6
13
1
7 years
58
57
14
66
4
3
2
9
10
25
17
16
11
20
7
59
1864
8
6
13
1
62
14
365
4
3
2
63
9
10
58