In what year was the first president of the United States to be assassinated killed?
1865
1865
1861
1865
1861
1865
1861
1865
1861
1865
1861
1865
1861
1865
1861
1865
1861
1865
1844
1864
1861
1865
1844
1863
1864
1861
1865
1775
1844
1863
1864
1820
1861
1865
1775
1844
1866
1863
1860
1864
1820
1776
1861
1865
1775
1844
1866
1863
1791
1860
1864
1820
1861
1865
1775
1844
1866
1863
1776
1791
1864
1820
1861
1865
1775
1860
1844
1828
1866
1863
1864
1820
1776
1861
1865
1791
1775
1838
1844
1863
1860
1828
1866
1864
1816
1861
1865
1775
1844
1863
1820
1776
1791
1838
1864
1861
1865
1775
1860
1844
1828
1866
1816
1863
1864
1824
1820
1776
1861
1789
1865
1791
1844
1863
1775
1838
1860
1828
1866
1864
1861
1865
1844
1816
1863
1824
1820
1776
1792
1864
1861
1789
1791
1862
1775
1838
1860
1844
1828
1866
1864
1816
1863
1824
1845
1844
1820
1776
1792
1789
1791
1862
1821
1817
1775
1838
1860
1844
1828
1866
1864
1816
1863
1824
1845
1820
1776
1792
1789
1791
1862
1821
1817
1775
1838
1860
1844
1828
1866
1864
1816
1863
1790
1824
1845
1820
1776
1792
1789
1791
1862
1821
1817
1861.
1865.
1775
1838
1860
1844
1828
1798