Tiananmen Square largest city squares in the world (440,500 m – 880×500 m or 109 acres – 960×550 yd). It has great cultural significance as it was the site of several important events in Chinese history. Outside China, the square is best known for the armed suppression of the pro-democracy June 1989 Tiananmen Square protests. The Tiananmen ("Gate of Heavenly Peace"), a gate in the wall of the Imperial City, was built in 1415 during the Ming dynasty. In the 17th century, fighting between Li Zicheng's rebel forces and the forces of the Manchu-led Qing dynasty caused heavy damage to, or even
Defend Tiananmen Square Headquarters through student pickets and entered the square, demonstrating the inability of the pickets to resist the army. Once the crackdown began, the responsibilities of the pickets widened to include maintaining order during the square’s evacuation, as well as physically protecting the Defend Tiananmen Square Headquarters leaders, which facilitated the escape of Chai Ling, Feng Congde, Li Lu, and Wang Chaohua. Attempting to exercise effective authority, the Headquarters established a central location so that they could create security lines and be found easily. It is important to note that the intended use of these security lines differs between the English and