When was construction on the Gateway Arch completed?
1965
1939
1939
1939
2021
1927
1913
1895
1939
2021
1904
1927
1913
1926
1895
1939
1915
2021
1904
1927
1887
1913
1898
1895
1939
2021
1904
1905
1932
1926
1927
1913
1889
1895
1939
1915
1923
1887
2021
1927
1913
1898
1903
1904
1905
1939
2021
1896
1932
1926
1889
1922
1927
1895
1970
1939
1915
1923
1887
2021
1913
1898
1903
1905
1970
1904
1909
1896
1932
1926
1889
1890
1939
1969
1970
1922
1965
1927
1895
1915
1923
1967
1887
1986
2021
2025
1980
1985
1960
1969
1970
1964
1939
1883
1888
1913
1965
1898
1903
1904
1905
1896
1967
1986
1968
1980
1963
1985
1984
1971
1960
1969
1970
1964
1909
1932
1926
1982
1889
1907
1922
1965
1927
1890
1973
1939
1967
1986
1968
1979
1980
1963
1985
1984
1971
1960
1969
1970
1966
1902
1894
1964
1990
1895
1976
1915
1923
1899
1975
1982
2021
1962
1965
1973
1961
1967
1986
1968
1979
1980
1963
1985
1984
1939
1971
1960
1931
1924
1887
1886
1969
1987
1970
1883
1888
2025
1913
2001
1966
1964
1990
1976
1975
1982
1962
1965
1973
1961
1967
1989
1986
1968
1979
1980
1898
1903
1963
1985
1984
1904
1905