Madian ( "Caravansary" or "Horse Pasture") is a community in Haidian District, northern Beijing. It is adjacent to the intersection of the 3rd Ring Road and the Badaling Expressway, at the Haidian District-Xicheng District border. Two separate street administrative offices serve portions of Madian. A complex overpass links the northern segment of the 3rd Ring Road with an express route coming from Deshengmen on the 2nd Ring Road through to the Badaling Expressway. Madian historically had a Hui population, and the Madian Mosque is located in the community. Madian Bridge has been expanded twice to create two direct links to the expressway. A few years ago, the route to Deshengmen was expanded and is now a city express route. History Wenfei Wang, Shangyi Zhou, and C. Cindy Fan, authors of "Growth and Decline of Muslim Hui Enclaves in Beijing," wrote that Madian historically was in a "relatively peripheral part of the city" and in particular "peripheral to the core areas of the city". During the Yuan Dynasty Madian was within the Beijing city wall. After the wall was rebuilt during the Ming Dynasty, Madian was outside of the city wall. Wenfei Wang, Shangyi Zhou, and Cindy Fan stated that according to historical records the first Hui arrived in Madian during the reign of the Kangxi Emperor of the Qing Dynasty. Turmoil in northwestern China during the Qing Dynasty caused many Hui to move eastward. A population of Hui, mostly horse and sheep traders, settled in Madian due to its access to horse and sheep trading routes. Therefore, a large trading market in horses and sheep was established there. Wenfei Wang, Shangyi Zhou, and Cindy Fan argued that the name Madian may have originated from the horse trading that occurred there and argued that this "may also be related to" the prevalence of the Ma family name in Madian. Kangxi built the Madian Mosque in 1662. Wenfei Wang, Shangyi Zhou, and Cindy Fan had interviewed an administrator of the mosque, who stated that the mosque "probably" opened due to a pre-existing Hui population. Around the 1930s, traders of pigs and pork detoured around Madian because it was homogeneously Muslim. The head of a resident committee interviewed by Wenfei Wang, Shangyi Zhou, and Cindy Fan in August 2000 stated that Madian was over 90% Muslim in the 1950s. In the late 1950s, the community received an influx of people displaced by the