January 15.1943-Completion of the construction area of the world's largest administrative building - the Pentagon
January 15, 1943 (Imo the twelfth lunar month, the tenth day of this seventh month), the construction area of the world's largest administrative building - the Pentagon completed.
Pentagon is located in Arlington, Washington near the Potomac River, the town, the seat of the U.S. Department of Defense. Looking from the air, the building into a regular pentagon, hence the name "Pentagon".
Pentagon covers an area of 2,359,000 square meters, 22 meters from the building, a total of five layers, total construction area of 608,000 square meters, the use of an area of about 344,000 square meters, and the time cost of $ 87 million, completed on January 15, 1943, opening in May of the same year, available for 2.3 million people in office. Have a large parking lot at the north and south sides of the building, parked car 10000.
1947, the 33rd President of the United States Harry S. Truman established the Department of Defense in this office. Since then, the Pentagon has become on behalf of the U.S. Department of Defense said. In addition to the Defense Ministry official, the building, including under the Joint Chiefs of Staff and by land, sea, and air force three headquarters. (L $ djτ.ЙЁT)
1941 the beginning of the year, Hitler controlled most of Europe, (lssjt.cn) when U.S. President Franklin D. Roosevelt declared a national emergency. The rapid growth of the U.S. Army (found in 1789-1947) in urgent need of a new command base So the Pentagon commence. The design responsible person of
Pentagon Brigadier General Brehon Burke Somerville. In July 1941, the Pentagon dimensional architectural drawings success. Commenced on September 11, 1941. In January 1943, just 16 months time, known as the world's largest office building covers an area of declared completed, and its architectural features named Pentagon put into use immediately, in the latter part of World War II, played an important military command function.
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