What year was the Lincoln Memorial built?
1914
1926
1926
1932
1939
1926
1932
1939
1913
1926
1922
1932
1921
1939
1913
1926
1922
1932
1921
1923
1939
1927
1913
1926
1922
1932
1921
1923
1939
1927
1913
1924
1915
1926
1922
1932
1921
1923
1939
1927
1913
1924
1931
1926
1922
1932
1921
1923
1915
1939
1927
1913
1924
1926
1922
1932
1921
1931
1923
1915
1939
1927
1913
1926
1922
1932
1924
1921
1931
1923
1939
1927
1913
1915
1926
1922
1932
1924
1921
1923
1939
1927
1913
1931
1915
1936
1926
1922
1932
1921
1923
1939
1927
1905
1913
1936
1924
1937
1926
1922
1932
1921
1935
1931
1923
1915
1936
1939
1927
1913
1937
1935
1926
1922
1912
1905
1936
1909
1932
1904
1921
1939
1937
1913
1924
1935
1931
1923
1915
1936
1926
1922
1933
1932
1921
1937
1908
1939
1907
1935
1927
1912
1913
1936
1933
1937
1926
1922
1905
1909
1932
1904
1924
1921
1935
1936
1939
1933
1913
1937
1931
1923
1915
1908
1907
1935
1927
1926
1936
1932
1933
1939
1937
1922
1912
1905
1913
1909
1904
1924
1935
1936
1926
1933
1932
1916
1921
1937
1931
1923
1915
1908
1939
1907
1935
1927
1936
1933
1916
1937
1926