Tiananmen Square was built in the 15th year of Yong Le period in Ming dynasty (1368—1644). Serving as the main entrance of the Forbidden City, it was initially named “Chengtian Square”. “Chengtian” meant the emperor was appointed to govern the nation by Heaven. However, at that time, it was just a three—storey wooden pailou (traditional Chinese-style gate), not as magnificent as at present. After being destroyed by the Big Fire in 1451, the square was rebuilt in 1465. However, the turbulent period of wars during the Ming dynasty caused the Square be reconstructed again. In the eighth year of Shun Zhi period in Ming dynasty (1368—1644), its name was changed to Tiananmen Square. The 33.7m high building was erected on a white marble diamond block. A red 10m platform was set on the block. Each of the platform’s brick weights 43kg. To show the emperor‘s supreme power, five rooms were built in the western part of the gate tower (stretching to its eastern side) and nine rooms from south to north. The numbers nine and five symbolized the emperor in ancient China. Tiananmen Square’s designer is Kuai Xiang; he was called “Lu Ban Kuai” at that time. During the late years of the Qing dynasty, Tiananmen Square was devastated by the feudalist rule and the eight-power allied forces. However, on 1st October 1949, Tiananmen Square gained on a new image as Chairman Mao announced the world that the People’s Republic of China had been founded. After that day, Tiananmen Square has been seen as the Holy Land in the eyes of the tens of thousands of Chinese. Today, Tiananmen Square has become the symbol of China; it was designed into Chinese national emblem. Because of its 500—year history from ancient to modern civilizations, Tiananmen Square remains an internationally recognized spot.