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Washington, D.C., formally the District of Columbia, also known as Washington or D.C. or locally simply as the District, is the capital city and federal district of the United States. It is located on the east bank of the Potomac River, which forms its southwestern and southern border with the U.S. state of Virginia, and it shares a land border with the U.S. state of Maryland on its other sides. The city was named for George Washington, a Founding Father and the first president of the United States, and the federal district is named after Columbia, the female personification of the nation. As the seat of the U.S. federal government and several international organizations, the city is an important world political capital. It is one of the most visited cities in the U.S., with over 20 million annual visitors as of 2016.

The U.S. Constitution provides for a federal district under the exclusive jurisdiction of Congress; the district is not a part of any U.S. state (nor is it one itself). The signing of the Residence Act on July 16, 1790, approved the creation of the capital district located along the Potomac River near the country's East Coast. The City of Washington was founded in 1791, and Congress held its first session there in 1800. In 1801, the territory, formerly part of Maryland and Virginia (including the settlements of Georgetown and Alexandria), officially became recognized as the federal district. In 1846, Congress returned the land originally ceded by Virginia, including the city of Alexandria; in 1871, it created a single municipal government for the remaining portion of the district. There have been efforts to make the city into a state since the 1880s, a movement that has gained momentum in recent years, and a statehood bill passed the House of Representatives in 2021.

Ningnan County belongs to Liangshan Yi Autonomous Prefecture, located in the south and east of Liangshan Yi Autonomous Prefecture, Sichuan Province, facing the Jinsha River and Qiaojia County in Yunnan Province across the river. Ningnan County, with a total area of 1667 square kilometers, has jurisdiction over 6 towns, 19 townships, 124 villages and 819 village groups, with a total population of 189000 (2014). It is a mountainous agricultural county dominated by the Han nationality, Yi, Buyi, Hui, Tibet, Mongolia and other ethnic groups. In September 2016, the State Council approved Ningnan County as a national key ecological functional area.
Travel Guides In Ningnan County
Travel Notes In Ningnan County
Ningnan's flowers and hot springs are waiting for you~
With the temperature rising and falling again and again, the much-anticipated spring is finally here Dead tree changed into new clothes The garden is
In 2021, a 9-day self-driving practical travel note for a 9-day family outing in Daliang Mountain, Sichuan
Plan travel routes and budget arrangements before traveling In the past few years, I have arranged inter-provincial trips during the summer vacation