|exterior square dimensions||16.8 m|
The beginning of the construction of the monument was marked by the ground breaking on July 4, 1848. Construction was halted in 1854, at a height of 150 feet, due to political events. For the centennial of the Declaration of Independence in 1876, the task to complete the structure was given to the Corps of Engineers. The foundations were redone as the monument was already leaning like the Tower of Pisa. The capstone was set in 1884 and the monument dedicated on February 21, 1885.
Relevant Web Sites
- Skyscrapers. A History of the World's Most Extraordinary Buildings. 2nd edition, Black Dog & Leventhal Publishers, Inc., New York (USA), ISBN 978-1-57912-787-9, pp. 14-15. (2008):
- Scaling the Monument. In: Civil Engineering Magazine, v. 69, n. 4 (April 1999). (1999):
- Washington: The National Capital. United States Government Printing Office, Washington (USA), pp. 284-307. (1921):
- History of the Washington National Monument Society. United States Government Printing Office, Washington (USA). (1903):
- Washington: City and Capital. Washington (USA), 1937, pp. 317-330.
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