Simplified Chinese characters in the context of Haifanggou Formation

The East China Sea is a marginal sea of the Western Pacific Ocean, located directly offshore from East China. China names the body of water along its eastern coast as "East Sea" (Dōng Hǎi, simplified Chinese: 东海; traditional Chinese: 東海) due to direction, the name of "East China Sea" is otherwise designated as a formal name by International Hydrographic Organization (IHO) and used internationally.

It covers an area of roughly 1,249,000 square kilometers (482,000 sq mi). The sea's northern extension between Korean Peninsula and mainland China is the Yellow Sea, separated by an imaginary line between the southwestern tip of South Korea's Jeju Island and the eastern tip of Qidong at the Yangtze River estuary.

Sima Tan (traditional Chinese: 司馬談; simplified Chinese: 司马谈; pinyin: Sīmǎ Tán; Wade–Giles: Ssu-ma T'an; c. 165–110 BCE) was a Chinese astrologist, astronomer, and historian during the Western Han dynasty. His work Records of the Grand Historian was completed by his son Sima Qian, who is considered the founder of Chinese historiography.

The Shiji (simplified Chinese: 史记; traditional Chinese: 史記; pinyin: Shǐjì; lit. 'Historical Records'), also known as Records of the Grand Historian or The Grand Scribe's Records (simplified Chinese: 太史公书; traditional Chinese: 太史公書; pinyin: Tàishǐgōng shū), is a Chinese historical text that is the first of the Twenty-Four Histories of imperial China. It was written during the late 2nd and early 1st centuries BC by the Han dynasty historian Sima Qian, building upon work begun by his father Sima Tan. The work covers a 2,500-year period from the age of the legendary Yellow Emperor to the reign of Emperor Wu of Han in the author's own time, and describes the world as it was known to the Chinese of the Western Han dynasty.

The Shiji has been called a "foundational text in Chinese civilization". Following Confucius and Qin Shi Huang, "Sima Qian was one of the creators of Imperial China; by providing definitive biographies, he effectively shaped the enduring images of these two earlier figures." The Shiji set the model for all subsequent dynastic histories of China. In contrast to Western historiographical conventions, the Shiji does not treat history as "a continuous, sweeping narrative", but rather breaks it up into smaller, overlapping units dealing with famous leaders, individuals, and major topics of significance.

Chinese philosophy (simplified Chinese: 中国哲学; traditional Chinese: 中國哲學) refers to the philosophical traditions that originated and developed within the historical and cultural context of China. It encompasses systematic reflections on issues such as existence, knowledge, ethics, and politics. Evolving over more than two millennia, Chinese philosophy includes classical traditions such as Confucianism, Daoism, and Buddhism, as well as modern responses to Western philosophical currents. As a cultural form of philosophy, it addresses universal philosophical concerns while also reflecting the specific historical and social conditions of China.

The historical development of Chinese philosophy began during the Spring and Autumn and Warring States periods, a time known as the "Hundred Schools of Thought". Major schools such as Confucianism, Daoism, Mohism, and Legalism emerged with distinct views on human nature, social order, and political authority. During the Han dynasty, Confucianism was established as the official ideology, shaping China's intellectual and political systems for centuries. In subsequent eras, Chinese philosophy integrated influences from Indian Buddhism, giving rise to new developments such as Neo-Confucianism in the Song and Ming dynasties. In the modern period, Chinese thinkers engaged with Western thought, resulting in the emergence of Three Principles of the People, Chinese Marxism, New Confucianism, and other philosophical movements. Throughout the 20th century, these traditions were reshaped by political upheaval and continue to evolve today.

The Yangtze River, Yangzi River (English: /ˈjæŋtsi/ or /ˈjɑːŋtsi/) or Chang Jiang (simplified Chinese: 长江; traditional Chinese: 長江; pinyin: Cháng Jiāng; lit. 'long river') is the longest river in China and the third-longest river in the world. It rises at Jari Hill in the Tanggula Mountains of the Tibetan Plateau and flows, 6,374 km (3,961 mi) including the Dam Qu River, the longest source of the Yangtze, in a generally easterly direction to the East China Sea. It is the fifth-largest primary river by discharge volume in the world. Its drainage basin comprises one-fifth of the land area of China, and is home to nearly one-third of the country's population.

The Yangtze has played a major role in the history, culture, and economy of China. For thousands of years, the river has been used for water, irrigation, sanitation, transportation, industry, boundary-marking, and war. The Yangtze Delta generates as much as 20% of China's GDP, and the Three Gorges Dam on the Yangtze is the largest hydro-electric power station in the world. In mid-2014, the Chinese government announced it was building a multi-tier transport network, comprising railways, roads and airports to create a new economic belt alongside the river.

Yangtze civilization (simplified Chinese: 长江文明; traditional Chinese: 長江文明) is a generic name for various ancient Neolithic and Bronze Age cultures from the Yangtze basin in China, a contemporary civilization by the neighboring Yellow River civilization.

Chinese culture (simplified Chinese: 中华文化; traditional Chinese: 中華文化; pinyin: Zhōnghuá wénhuà) is one of the world's earliest cultures, said to originate five thousand years ago. The culture prevails across a large geographical region in East Asia called the Sinosphere as a whole and is extremely diverse, with customs and traditions varying greatly between regions. The terms 'China' and the geographical landmass of 'China' have shifted across the centuries, before the name 'China' became commonplace. Chinese civilization is historically considered a dominant culture of East Asia. Chinese culture exerted profound influence on the philosophy, customs, politics, and traditions of Asia. Chinese characters, ceramics, architecture, music, dance, literature, martial arts, cuisine, arts, philosophy, etiquette, religion, politics, and history have had global influence, while its traditions and festivals are celebrated, instilled, and practiced by people around the world.

Fajia (Chinese: 法家; pinyin: fǎjiā), or the School of fa (incl. law, method), often translated Legalism, was a bibliographic school of primarily Warring States period classical Chinese philosophy, including more administrative works traditionally said to be rooted in Huang-Lao Daoism. Addressing practical governance challenges of the unstable feudal system, their ideas 'contributed greatly to the formation of the Chinese empire' and bureaucracy, advocating concepts including rule by law, sophisticated administrative technique, and ideas of state and sovereign power. They are often interpreted along realist lines. Though persisting, the Qin to Tang were more characterized by the 'centralizing tendencies' of their traditions.

The school incorporates the more legalistic ideas of Li Kui and Shang Yang, and more administrative Shen Buhai and Shen Dao, with Shen Buhai, Shen Dao, and Han Fei traditionally said by Sima Qian to be rooted in Huang-Lao (Daoism). Shen Dao may have been a significant early influence for Daoism and administration. These earlier currents were synthesized in the Han Feizi, including some of the earliest commentaries on the Daoist text Daodejing. The later Han dynasty considered Guan Zhong to be a forefather of the school, with the Guanzi added later. Later dynasties regarded Xun Kuang as a teacher of Han Fei and Qin Chancellor Li Si, as attested by Sima Qian, approvingly included during the 1970s along with figures like Zhang Binglin.

East China (Chinese: 华东; pinyin: huá dōng) is a geographical region in the People's Republic of China, mainly consisting of seven province-level administrative divisions, namely the provinces (from north to south) Shandong, Jiangsu, Anhui, Zhejiang, Jiangxi, Fujian, and the direct-administered municipality Shanghai.

The region was defined in 1945 as the jurisdiction area of the Central Committee's East China Bureau (华东局), which was a merger politburo agency of the Shandong Bureau and the Central China Bureau previously established during the Second Sino-Japanese War. After the founding of the People's Republic of China, the region included all the aforementioned provinces except Jiangxi, which was previously considered part of South Central China before being reassigned in 1961. The East China Bureau was abolished in 1966 due to the Cultural Revolution, but in 1970 the fourth five-year plan redefined the region as the East China Coordinated Region (华东协作区), which supported the logistics of the Jinan and Nanjing Military Regions. This geographical definition was retained after the economic reform of the 1980s.

The Yellow Sea (simplified Chinese: 黄海; traditional Chinese: 黃海; pinyin: Huáng Hǎi; Korean: 황해; Hanja: 黃海; RR: Hwanghae), also known as the North Sea, is a marginal sea of the Western Pacific Ocean located between mainland China and the Korean Peninsula, and can be considered the northwestern part of the East China Sea.

Taipei (/ˌtaɪˈpeɪ/ ; traditional Chinese: 臺北; simplified Chinese: 台北; pinyin: Táiběi pronounced:[tʰǎɪpèɪ]), officially Taipei City, is the capital and a special municipality of Taiwan. Located in Northern Taiwan, Taipei City is an enclave of the municipality of New Taipei City that sits about 25 km (16 mi) southwest of the northern port city of Keelung. Most of the city rests on the Taipei Basin, an ancient lakebed. The basin is bounded by the relatively narrow valleys of the Keelung and Xindian rivers, which join to form the Tamsui River along the city's western border.

The municipality of Taipei is home to an estimated population of 2,494,813 (March 2023), forming the core part of the Taipei–Keelung metropolitan area, also known as "Greater Taipei", which includes the nearby cities of New Taipei and Keelung with a population of 7,047,559, the 40th most-populous urban area in the world—roughly one-third of Taiwanese citizens live in the metro areas. The name "Taipei" can refer either to the whole metropolitan area or just the municipality alone. Taipei has been the political center of the island since 1887, when it first became the seat of Taiwan Province by the Qing dynasty until 1895 and again from 1945 to 1956 by the Republic of China (ROC) government, with an interregnum from 1895 to 1945 as the seat of the Government-General of Taiwan during the Japanese rule. The city has been the national seat of the ROC central government since 1949, and it became the nation's first special municipality (then known as Yuan-controlled municipality) on 1 July 1967, upgrading from provincial city status.

Chinese (spoken: simplified Chinese: 汉语; traditional Chinese: 漢語; pinyin: Hànyǔ, written: 中文; Zhōngwén) is an umbrella term for Sinitic languages in the Sino-Tibetan language family, widely recognized as a group of language varieties, spoken natively by the ethnic Han Chinese majority and many minority ethnic groups in China, as well as by various communities of the Chinese diaspora. Approximately 1.39 billion people, or 17% of the global population, speak one of the Chinese languages as their first language.

The Chinese languages form the Sinitic branch of the Sino-Tibetan language family. The Chinese government considers the spoken varieties of the Chinese languages dialects of a single language. However, their lack of mutual intelligibility means they are considered to be separate languages in a family by linguists. Investigation of the historical relationships among the varieties of Chinese is ongoing. Currently, most classifications posit 7 to 13 main regional groups based on phonetic developments from Middle Chinese, of which the most spoken by far is Mandarin with 66%, or around 800 million speakers, followed by Min (75 million, e.g., Southern Min), Wu (74 million, e.g., Shanghainese), and Yue (68 million, e.g., Cantonese). These branches are unintelligible to each other, and many of their subgroups are unintelligible with the other varieties within the same branch (e.g., Southern Min). There are, however, transitional areas where varieties from different branches share enough features for some limited intelligibility, including New Xiang with Southwestern Mandarin, Xuanzhou Wu Chinese with Lower Yangtze Mandarin, Jin with Central Plains Mandarin and certain divergent dialects of Hakka with Gan. All varieties of Chinese are tonal at least to some degree, and are largely analytic.

Hanyu Pinyin, or simply pinyin (pīnyīn), officially the Chinese Phonetic Alphabet, is the most common romanization system for Standard Chinese. Hanyu (simplified Chinese: 汉语; traditional Chinese: 漢語) literally means 'Han language'—that is, the Chinese language—while pinyin literally means 'spelled sounds'. Pinyin is the official romanization system used in China, Singapore, and Taiwan, and by the United Nations. Its use has become common when transliterating Standard Chinese mostly regardless of region, though it is less ubiquitous in Taiwan. It is used to teach Standard Chinese, normally written with Chinese characters, to students in mainland China and Singapore. Pinyin is also used by various input methods on computers and to categorize entries in some Chinese dictionaries.

In pinyin, each Chinese syllable is spelled in terms of an optional initial and a final, each of which is represented by one or more letters. Initials are initial consonants, whereas finals are all possible combinations of medials (semivowels coming before the vowel), a nucleus vowel, and coda (final vowel or consonant). Diacritics are used to indicate the four tones found in Standard Chinese, though these are often omitted in various contexts, such as when spelling Chinese names in non-Chinese texts.

A Party Committee Secretary is the leader of the Chinese Communist Party (CCP) organization in a province, city, village, or other administrative unit. In most cases, it is the de facto highest political office of its area of jurisdiction. The term can also be used for the leadership position of CCP organizations in state-owned enterprises, private companies, foreign-owned companies, universities, research institutes, hospitals, as well as other institutions of the state.

Post-Cultural Revolution, the CCP is responsible for the formulation of policies and the government is responsible for its day-to-day execution. At every level of jurisdiction, a government leader serves alongside the party secretary. For example, in the case of a province, the provincial Party Secretary is the de facto highest office, but the government is headed by a government leader called a "Governor" (simplified Chinese: 省长; traditional Chinese: 省長; pinyin: shěng zhǎng). The Governor is usually the second-highest-ranking official in the party's Provincial Committee, and holds the concurrent title of "Deputy Party Committee Secretary" (simplified Chinese: 省委副书记; traditional Chinese: 省委副書記; pinyin: shěng wěi fù shū jì). A similar comparison can be made for municipal Party Secretaries and Mayors in city-level, or even for the general secretary of CCP and the Premier of State Council in state-level.

Members of the standing committees of the Chinese Communist Party provincial-level committees, commonly referred to as Shengwei Changwei (Chinese: 省委常委; pinyin: shěngwěi chángwěi), make up the top ranks of the provincial-level organizations of the Chinese Communist Party (CCP). In theory, the Standing Committee of a Party Committee manages the day-to-day party affairs of a provincial party organization, and are selected from the members of the provincial-level Party Committee at large. In practice, Shengwei Changwei is a position with significant political power, and their appointments are essentially directed by the central leadership through the Organization Department of the Chinese Communist Party.

There are six official languages used in United Nations (UN) meetings and in which the UN writes and publishes all its official documents. In 1946, five languages were chosen as official languages of the UN: English, French, Russian, Spanish, and Chinese. In 1973, Arabic was voted to be an additional official language. As of 2025, the official languages of the United Nations are:

• English (British English with Oxford spelling), in Latin alphabet;
• French (Metropolitan French – français métropolitain / langues d'oïl) in Latin alphabet;
• Spanish (Peninsular Spanish – español peninsular / castellano) in Spanish alphabet;
• Russian (Moscow Russian – московское произношение moskovskoye proiznosheniye) in the Russian Cyrillic alphabet;
• Chinese (Standard Mandarin – 中文 zhōngwén / 普通话 pǔtōnghuà) in Simplified Chinese characters;
• Arabic (Modern Standard Arabic – العربية al-ʿarabiyyah / الفصحى al-fuṣḥá) in Naskh / Arabic abjad.

According to the UN Charter each of these six languages is equally authoritative although English and French have traditionally received preferential status and are the only two official and working languages of the UN Secretariat. It is an unspoken rule that the UN Secretary General and other high ranking United Nations officials must be fluent (at least C1 – Advanced fluency level according to the Common European Framework of Reference for Languages / CEFRL) in at least English and French. The UN has struggled to provide parity of all 6 languages as the English language has become the dominant world language in the digital age.

Mandarin (/ˈmændərɪn/ MAN-dər-in; simplified Chinese: 官话; traditional Chinese: 官話; pinyin: Guānhuà; lit. 'officials' speech') is the largest branch of the Sinitic languages. Mandarin varieties are spoken by 70 percent of all Chinese speakers over a large geographical area that stretches from Yunnan in the southwest to Xinjiang in the northwest and Heilongjiang in the northeast. Its spread is generally attributed to the greater ease of travel and communication in the North China Plain compared to the more mountainous south, combined with the relatively recent spread of Mandarin to frontier areas.

Many varieties of Mandarin, such as those of the Southwest (including Sichuanese) and the Lower Yangtze, are not mutually intelligible with the Beijing dialect (or are only partially intelligible). Nevertheless, Mandarin as a group is often placed first in lists of languages by number of native speakers (with nearly one billion). Because Mandarin originated in North China and most Mandarin varieties are found in the north, the group is sometimes referred to as Northern Chinese (simplified Chinese: 北方话; traditional Chinese: 北方話; pinyin: Běifānghuà; lit. 'northern speech').

The Yellow Emperor, also known as the Yellow Thearch or Huangdi (traditional Chinese: 黃帝; simplified Chinese: 黄帝), was a mythical Chinese sovereign and culture hero included among the legendary Three Sovereigns and Five Emperors. He is revered as a deity individually or as part of the Five Regions Highest Deities (Chinese: 五方上帝; pinyin: Wǔfāng Shàngdì) in Chinese folk religion. Regarded as the initiator of Chinese culture, he is traditionally credited with numerous innovations – including the traditional Chinese calendar, Taoism, wooden houses, boats, carts, the compass needle, "the earliest forms of writing", and cuju, a ball game. Calculated by Jesuit missionaries, as based on various Chinese chronicles, Huangdi's traditional reign dates begin in either 2698 or 2697 BC, spanning one hundred years exactly, later accepted by the twentieth-century promoters of a universal calendar starting with the Yellow Emperor.

Huangdi's cult is first attested in the Warring States period, and became prominent late in that same period and into the early Han dynasty, when he was portrayed as the originator of the centralized state, as a cosmic ruler, and as a patron of esoteric arts. A large number of texts – such as the Huangdi Neijing, a medical classic, and the Huangdi Sijing, a group of political treatises – were thus attributed to him. Having waned in influence during most of the imperial period, in the early twentieth century Huangdi became a rallying figure for Han Chinese attempts to overthrow the rule of the Qing dynasty, remaining a powerful symbol within modern Chinese nationalism.