The Dongcheng District (; literally "east city district") of Beijing covers the eastern half of Beijing's urban core, including all of the eastern half of the Old City inside of the 2nd Ring Road with the northernmost extent crossing into the area within the 3rd Ring Road. Its area is further subdivided into 17 subdistricts. Settlement in the area dates back over a millennium. It did not formally become a district of the city until the establishment of the Republic of China in 1911. The name Dongcheng was first given to it in a 1958 reorganization; it has existed in its current form since a 2010 merger with the former Chongwen District to its south. Dongcheng includes many of Beijing's major cultural attractions, such as the Forbidden City and Temple of Heaven, both UNESCO World Heritage Sites. More than a quarter of the city's Major National Historical and Cultural Sites are inside its boundaries, with a similar percentage of those protected at the municipal level. Tiananmen Square is also in Dongcheng, along with other popular destinations for domestic and international tourists such as the bars and nightlife in the hutongs of Nanluoguxiang and the shopping in Wangfujing. Over three-quarters of the district's economic activity is in the service sector. Geography Dongcheng is often described, and depicted on simplified maps, as the eastern half of the area inside the 2nd Ring Road. However, the district boundaries include some areas outside it as well, particularly on the north and east. In the former direction a small projection crosses the 3rd Ring Road. The 2010 merger with Chongwen added some land beyond the Ring Road on the south. Boundary From Tiananmen Gate at the north end of the eponymous square the district boundary follows West Chang'an Avenue to Chang Street, where it turns north, taking in Zhongshan Park as it follows the western moat of the Forbidden City. At Wenzhin Street it turns eastward to follow Jingshan Front Street between the Forbidden City and Jingshan Park. It resumes its northward course along Jingshan East Street, turning west along Jingshan Back Street, thus leaving all of Jingshan in the Xicheng District to the west. At Di'anmen Inner Street it turns north again, following the east–west line that formally divided Beijing in the mid-15th century. After a short turn to the west at the Bell and Drum Towers along Gulou West Street, it resumes its