2nd-century BC establishments in China

Sichuan Chengdu Shishi High School (四川省成都市石室中学), also known as Sichuan Chengdu No. 4 High School (四川省成都市第四中学), is a public secondary school in Chengdu, Sichuan, China.

The Four Commanderies of Han (Chinese: 漢四郡; pinyin: Hàn-sìjùn; Korean: 한사군; Hanja: 漢四郡; RR: Han-sagun) were Chinese commanderies located in the north of the Korean Peninsula and part of the Liaodong Peninsula from around the end of the second century BC through the early 4th AD, for the longest lasting. The commanderies were set up to control the populace in the former Gojoseon area as far south as the Han River, with a core area at Lelang near present-day Pyongyang by Emperor Wu of the Han dynasty in early 2nd century BC after his conquest of Wiman Joseon. As such, these commanderies are seen as Chinese colonies by some scholars. Though disputed by North Korean scholars, Western sources generally describe the Lelang Commandery as existing within the Korean peninsula, and extend the rule of the four commanderies as far south as the Han River. However, South Korean scholars assumed its administrative areas to Pyongan and Hwanghae provinces.

You Prefecture or You Province, also known by its Chinese name Youzhou, was a prefecture (zhou) in northern China during its imperial era.

Xiaolian (Chinese: 孝廉; literally "filial and incorrupt"), was the standard of nominating civil officers started by Emperor Wu of Han in 134 BC. It lasted until its replacement by the imperial examination system during the Sui dynasty. In Confucian philosophy, filial piety is a virtue of respect for one's parents and ancestors.

Suoyang City (Chinese: 锁阳城; pinyin: Suǒyáng Chéng), also called Kuyu (苦峪), is a ruined Silk Road city in Guazhou County of Gansu Province in northwestern China. First established as Ming'an County in 111 BC by Emperor Wu of Han, the city was relocated and rebuilt at the current site in 295 AD by Emperor Hui of the Western Jin dynasty. As the capital of Jinchang Commandery (later Guazhou Prefecture), the city prospered during the Tang and Western Xia dynasties. It was an important administrative, economic, and cultural center of the Hexi Corridor for over a millennium, with an estimated peak population of 50,000. It was destroyed and abandoned in the 16th century, after the Ming dynasty came under attack by Mansur Khan of Moghulistan.

Tongzhou is a district of Beijing. It is located in southeast Beijing and considered the eastern gateway to the nation's capital. Downtown Tongzhou itself lies around 20 km (12 mi) east of central Beijing, at the northern end of the Grand Canal (on the junction between the Tonghui Canal and the Northern Canal) and at the easternmost end of Chang'an Avenue. The entire district covers an area of 906 km (350 sq mi), or 6% of Beijing's total area. It had a population of 673,952 at the 2000 Census, and has seen significant growth and development since then, growing to a population of 1,184,000 at the 2010 Census and 1,840,295 at the 2020 census. The district is subdivided into four subdistricts, ten towns, and one ethnic township.