When was the World War Two Memorial on the National Mall opened to the public?
38106
1939
1939
1939
1939
1939
1939
1939
1939
1939
1939
September 11, 2001
1939
September 11, 2001
1939
September 11, 2001
1939
September 11, 2001
1939
1932
September 11, 2001
1939
2021
1932
1939
September 11, 2001
1932
2021
1939
1931
1932
2021
September 11, 2001
1939
1940
1931
1932
2021
1940
1939
1941
1968
1965
1931
1932
2021
1940
1955
1941
1967
1968
1948
1939
1963
1965
1942
1949
1940
1931
1932
1955
2021
1954
1953
1941
1967
1968
1948
1963
1965
1942
1946
1988
1957
1938
1949
1950
1940
1961
1958
1964
1960
1955
1954
1953
1986
1931
1923
1941
1932
1967
1968
1948
1963
1989
1965
1984
2021
1943
1942
1946
1988
1957
1938
1949
1966
1970
1950
1940
1961
1958
1964
1960
1969
1951
1955
1954
1962
1953
1986
1941
1967
1968
1948
1963
1985
1989
1965
1984
1993
1943
1942
1946
1952
1988
1957
1931
1938
1949
1966
1932
1990
1970
1950
2021
1940
1961
1958
1964
1960
1945
1987
1969
1951
1955
1954
1926
1927
1922
2001
1931
1932
1924
2021
1923
1926
1931
1932
1927
1922
2021
1939.
1890
25th Century
September 11, 2000
1931
1932
1924
2021
1899
1890
1898
1923
1931
1932
1926
1927
29th Century
22nd Century
2021
1899
1898
1895
1939.
1932
September 11th
1889
March 4, 1953
November 11, 1940
25th Anniversary
2021