When was Mount Rushmore declared a completed project?
15280
1927
1927
1927
1927
1927
1927
1927
1927
June 4, 1927
December 20, 1927
1927
April 11, 1927
21st century
1932
April 21, 1927
1931
1927
June 20, 1941
21st century
1932
1931
1927
June 4, 1941
April 11, 1941
April 21, 1941
1932
21st century
June 4, 1927
1931
1927
April 11, 1927
June 1927
1932
April 21, 1927
1931
1927
21st century
1939
June 20, 1941
June 1927
1932
December 20, 1941
June 4, 1941
1931
1927
1939
April 11, 1941
21st century
June 4, 1927
April 21, 1941
June 1927
April 11, 1927
1932
February 22, 1941
1931
1927
1939
April 21, 1927
21st century
1927.
1932
June 20, 1941
1931
21st Century
1927
1939
December 20, 1927.
June 1927
June 4, 1941
21st century
June 4, 1927
June 4, 1927.
1927.
April 11, 1939
1941
1932
April 11, 1941
April 11, 1927.
April 21, 1941
1931
April 21, 1939
1927
1939
April 11, 1927
21st Century
April 21, 1927.
1941
February 22, 1941
June 4, 1939
April 21, 1927
1932
1927.
1931
June 20, 1927
1927
1939
June 20, 1941.
1941
June 20, 1941
21st Century
June 1927
1932
1931
1926
1927.
1941
1927
1939
June 4, 1941
April 11, 1931
December 20, 1939
April 11, 1941
February 27, 1941
April 21, 1941
21st Century
June 4, 1927
April 11, 1939
1941
1932
1931
April 21, 1939
1927
1939
1927.
April 11, 1927
June 1927
1926
1941
June 4, 1939
April 21, 1927
1923
1932
June 20, 1941.
21st Century
1931
June 20, 1941
1939
June 4, 1927.
1927.
April 21, 1932
1941
1940
June 4, 1932
April 11, 1931
April 11, 1927.
June 4, 1941
1932
April 21, 1927.
1931
1941
1940
April 11, 1941
21st Century
June 4, 1927
1939
April 11, 1939
April 21, 1941
1927.
February 22, 1941
April 21, 1939
14-Mar-18
April 11, 1927
June 1927
1923
1941
1932
1940
21-Mar-19
1931
1926
June 4, 1939
April 21, 1927
1939
April 11, 1931
June 20, 1941.
21st Century
April 21, 1931
April 21, 1932
June 20, 1927
1927.
1941
1940
1936
June 20, 1941
April 11, 1939.
26-Mar-18
1932
April 21, 1939.
1931
1939
January 1941
1941
1940
1943
1936
June 4, 1941
1926
June 20, 1940
April 11, 1939
1927.