唐朝

The Tang dynasty (唐朝 Tángcháo, 618–907 CE) was founded by 李渊 Lǐ Yuān, a Sui dynasty military governor who exploited the chaos of Sui's collapse — brought on by Emperor Yang's catastrophic Korean campaigns and the rebellion they provoked — to seize the throne. Li Yuan was an efficient administrator and a shrewd coalition-builder, but he would be eclipsed by his second son: 李世民 Lǐ Shìmín (598–649 CE), who would become 唐太宗 Táng Tàizōng and the most admired emperor in Chinese history after the Han founders.

Li Shimin's path to the throne was violent. In 626 CE, he and his supporters ambushed and killed his elder brother (the crown prince) and a younger brother at the palace's 玄武门 Xuánwǔ Mén (Xuanwu Gate), then forced his father to abdicate in his favor — the 玄武门之变 Xuánwǔ Mén zhī Biàn (Xuanwu Gate Incident). This coup haunted Taizong for the rest of his life and shaped his intense investment in moral governance as a form of self-legitimation.

The period of Taizong's personal rule (627–649 CE) is known as 贞观之治 Zhēnguān zhī Zhì — the Well-Governed Era of Zhenguan (Zhenguan being his reign-era name). Its reputation rests on Taizong's relationship with his remonstrating ministers — above all 魏徵 Wèi Zhēng, who repeatedly criticized the emperor to his face and was never punished. Taizong's famous self-reflection: "A ruler uses his ministers as a mirror; a bright mirror reveals flaws; a flattering minister is a distorting mirror." His own formulation: 以史为镜，可以知兴替 — "Using history as a mirror, one can understand the rise and fall of dynasties."

Taizong's military campaigns extended Tang power into Central Asia and Korea; his diplomatic network incorporated the Tibetan kingdom (he sent a princess, 文成公主 Wénchéng Gōngzhǔ, to marry the Tibetan king 松赞干布 Sōngzàn Gānbù in 641 CE, a union still celebrated in both Chinese and Tibetan traditions). The Turkic peoples of the steppe honored him with the title 天可汗 Tiān Kèhán (Heavenly Khagan) — recognizing him as the supreme lord of the steppe world as well as the agricultural world, a dual sovereignty no Han emperor had achieved.

The 盛唐 Shèng Táng (High Tang) conventionally refers to the century from roughly 650 to 755 CE — from the consolidation of Taizong's achievement through the opening decades of 唐玄宗 Táng Xuánzōng's reign (r. 712–756 CE), when Tang culture achieved its fullest expression before the An Lushan catastrophe. This was the era that produced Li Bai and Du Fu, when Chang'an was the greatest city on earth, and when the Tang was confident enough in its power to absorb foreign influences without anxiety.

The 科举 kējǔ civil examination system — inaugurated under the Sui and dramatically expanded under Tang — was central to this era's character. The examinations, which tested mastery of the Confucian classics and especially skill in composing regulated verse (律诗 lǜshī), created a meritocratic pathway to power that was available in principle to any man of sufficient education. In practice, preparation required years of study that only families of some wealth could support, but it was genuinely open across regional lines and social backgrounds compared to the aristocratic systems of the early Tang. The exams also meant that the ruling elite were, by definition, poets — with profound consequences for the culture's investment in verse as the supreme literary form.

Tang culture absorbed the world around it with remarkable openness. Music from Central Asia (胡乐 Hú yuè), dance forms from Sogdiana and Kucha, fashions from the steppe, Buddhist iconography from India and Gandhara — all were incorporated, adapted, and re-expressed in distinctly Tang form. The 唐三彩 Táng Sāncǎi (Tang polychrome glazed ceramics), with their vivid splashes of amber, green, and cream, are the material signature of this cosmopolitan confidence. Found across the trade routes from Japan to Egypt, they are the first "global" Chinese artistic export.

武则天 Wǔ Zétiān (624–705 CE) is the only woman in Chinese history to rule as emperor in her own name. She entered the palace as a low-ranking concubine of Emperor Taizong at age fourteen; when Taizong died (649 CE) she was sent, as was custom, to a Buddhist nunnery. She was rescued from this fate by Taizong's son, the new Emperor Gaozong, who brought her back to court as his own concubine — a scandalous violation of Tang propriety that she apparently engineered. She rose through a series of political eliminations to become Gaozong's empress in 655 CE.

As Gaozong's health deteriorated in the 660s, Wu Zetian effectively governed the empire. After his death in 683 CE, she maneuvered through two of her own sons, deposing one and forcing another's abdication, before declaring herself emperor of a new dynasty, the 周 Zhōu (Wu Zhou dynasty, 690–705 CE). She used Buddhism to legitimize her rule — Buddhist texts had been produced, likely at her instigation, claiming that a woman would arise to rule the world as a chakravartin (wheel-turning king), and she was identified as this figure.

Wu Zetian's governance was consequential in several directions. She massively expanded the civil examination system, adding palace examinations in the emperor's personal presence and creating 武举 wǔjǔ (military examinations) — broadening the meritocratic base against the old aristocratic families who had dominated the early Tang court and who resented her. She was a capable administrator, presided over an expanding empire, and sponsored Buddhist art on a large scale (the 龙门石窟 Lóngmén Shíkū Longmen Grottoes near Luoyang were completed partly under her patronage). She was also ruthless in eliminating opposition, using a system of anonymous denunciation (告密制度 gàomì zhìdù) that created an atmosphere of fear.

She was deposed in 705 CE by a coup at age eighty, her Tang dynasty restored. Her blank stele (无字碑 Wúzì Bēi) — erected beside her tomb with no inscription — has been interpreted ever since as either supreme confidence (her deeds speak for themselves) or a deliberate challenge to history to write its own verdict. The debate has continued for 1,300 years.

长安 Cháng'ān (lit. "Perpetual Peace," modern Xi'an) at its Tang-era peak was the largest city on earth — population estimates for the city proper and its surrounding urban area range from 800,000 to over one million people. The Tang capital was laid out on a grid of mathematical precision: a rectangle roughly 9.7 km east-west by 8.2 km north-south, divided into 108 rectangular wards (坊 fāng) by a grid of avenues. The main north-south axis, 朱雀大街 Zhūquè Dàjiē (Vermilion Bird Avenue), was 150 meters wide — wider than any road in imperial Rome.

Chang'an was genuinely cosmopolitan: home to Zoroastrian temples, Nestorian Christian churches (景教 Jǐngjiào — celebrated in the Nestorian Stele of 781 CE, discovered in Xi'an in 1625), Manichaean meeting halls, Jewish communities, Persian and Sogdian merchant quarters, Japanese and Korean students studying for years at a time, and embassies from dozens of states from Japan to the Byzantine Empire. The 西市 Xī Shì (Western Market) was the commercial district where foreign merchants concentrated; it was a permanent international trade fair and cultural crossroads.

The Tang capital's physical magnificence was not merely architectural: it was the material expression of a worldview that saw China as the center of a civilized world that extended to all points of the compass, and that was confident enough in this centrality to welcome, absorb, and transform everything the periphery could offer. This openness — sometimes called the "Tang spirit" (唐朝精神 Tángcháo jīngshén) — is one reason the Tang is nostalgically idealized in Chinese culture as a period of unself-conscious greatness.

The 科举 examination system drew students to Chang'an from all over the empire and from neighboring states. Korean and Japanese students lived in Chang'an for years, mastering Tang poetry, Confucian learning, Buddhist doctrine, and Chinese administrative methods — then carried Tang culture back home, where it transformed their own civilizations. The Japanese imperial palace at Nara (built 710 CE) was explicitly modeled on Chang'an's grid plan. Tang calligraphy, poetry forms, Buddhist iconography, and administrative vocabulary all became foundational to Japanese and Korean high culture.

The Tang dynasty produced what Chinese literary tradition regards as the pinnacle of Chinese poetry. The 全唐诗 Quán Táng Shī (Complete Tang Poetry), compiled in 1705 on imperial order, contains 48,900 poems by over 2,200 poets — and is understood to be only a fraction of what was composed. The Tang examination's requirement that candidates compose regulated verse (律诗 lǜshī) in strict formal patterns meant that virtually every literate person wrote poetry, and the best poets were also the most brilliant minds in public life.

李白 Lǐ Bái (701–762 CE), known in English as Li Po or Li Bai, is the poet of ecstatic freedom — of wine, moonlight, mountains, and friendship, of the Daoist sage-wanderer who has shed the anxieties of office and ambition. He was reportedly never fully committed to the examination career; his poems revel in an aristocratic contempt for worldly striving. His verse is immediate, sensory, and technically brilliant in a way that conceals its technical command. He is the poet most memorized by Chinese schoolchildren today.

杜甫 Dù Fǔ (712–770 CE), known as the "Poet-Sage" (诗圣 Shī Shèng), is Li Bai's great counterpart — the poet of moral seriousness, historical witness, and compassion for suffering. Where Li Bai flies, Du Fu stays on the ground among the wounded and the displaced. He witnessed the An Lushan Rebellion firsthand, spent years as a refugee, and poured the catastrophe into verse of extraordinary formal precision and moral weight. His poem 春望 Chūn Wàng (Spring View) — written while imprisoned in rebel-held Chang'an — contains one of the most famous couplets in Chinese literature: 烽火连三月，家书抵万金 (Beacon fires for three months; a letter from home worth ten thousand gold).

王维 Wáng Wéi (699–759 CE) is the third of the great trio — poet, painter, and devoted Buddhist whose verse has a quality of contemplative stillness that his admirers called "poetry with painting within it, painting with poetry within it" (诗中有画，画中有诗). His quatrains of mountain solitude and autumn light seem to dissolve the boundary between observer and observed. He survived the An Lushan Rebellion by capitulating to the rebels — accepted office in the rebel court and later had to be pardoned, a stain his admirers have argued about ever since.

The 安史之乱 Ān-Shǐ zhī Luàn (An-Shi Rebellion, 755–763 CE) is the great rupture in Tang history — the event that divides "High Tang" from "Late Tang," confident expansion from anxious contraction. It is named for its two leaders: 安禄山 Ān Lùshān, a military commander of Sogdian-Turkic origin who controlled three northeastern frontier commands (节度使 jiédùshǐ), and his subordinate 史思明 Shǐ Sīmíng.

The rebellion's precondition was the concentration of military power in the frontier commands. Emperor Xuanzong (r. 712–756 CE), in the long and brilliant opening decades of his reign — the 开元盛世 Kāiyuán Shèngshì (Glorious Era of Kaiyuan) — had allowed this concentration to develop while himself falling into the pleasures of late reign: his obsessive love for the imperial consort 杨贵妃 Yáng Guìfēi (Yang Guifei) and his reliance on the corrupt chief minister 杨国忠 Yáng Guózhōng (Yang Guifei's cousin) had weakened court governance.

An Lushan launched his rebellion in December 755 CE with an army of approximately 200,000. He captured the secondary capital Luoyang in January 756 CE, and the primary capital Chang'an fell that summer. Xuanzong fled southwest toward Sichuan; at the Mawei station (马嵬驿 Mǎwéi Yì), his escort troops mutinied and demanded the execution of Yang Guozhong — and then of Yang Guifei herself. Xuanzong consented; she was strangled. The tragedy of Xuanzong and Yang Guifei became the most celebrated love story in Chinese literary history, immortalized in Bai Juyi's 长恨歌 Cháng Hèn Gē (Song of Everlasting Regret).

The rebellion was suppressed by 763 CE but only with the help of the Uyghur Khaganate — at significant political cost. The Tang never recovered its former vigor. The frontier military commanders (节度使) retained their power; the court depended on them rather than commanding them. Over the next century and a half, the Tang contracted, eunuch power at court intensified, and the brilliant provincial culture of the Late Tang — melancholy, self-aware, retrospective — expressed the mood of an empire that knew its best years were past.