What happened in 667?

East Asia

• Founding of the Tang Dynasty

  618–907Chang'an (Tang capital site), Xi'an, Shaanxi, China

  The Tang dynasty was founded by Li Yuan in 618, replacing the Sui dynasty. It became a major unified dynasty in Chinese history, with its capital at Chang'an.

  SourcesWikipedia ↗

• Goguryeo–Tang War

  645–668Liaodong Peninsula

  Between 645 and 668, Tang China and Silla waged war against Goguryeo. Early Tang invasions were repulsed, but after conquering Baekje in 660, the allies attacked from north and south. The death of Goguryeo's leader Yeon Gaesomun in 666 triggered internal strife; the next year a new invasion, aided by defector Yeon Namsaeng, was launched. In late 668, exhausted by prolonged warfare and internal chaos, Goguryeo fell.

  SourcesWikipedia ↗

• Founding of the Ōmi Ōtsu Palace

  667

  In 667 AD, Emperor Tenchi built the Ōmi Ōtsu Palace in Asuka period Japan, establishing it as the new capital. Located in present-day Ōtsu, Shiga Prefecture, it served as the administrative center of Japan for five years (667–672). During this period, the Ōmi Code and a family registry system were promulgated, laying the foundations for the later ritsuryō state. The site was designated a National Historic Site of Japan in 1979.

  SourcesWikipedia ↗

• Taika Reform

  645–894Naniwa-kyō (Naniwa Palace site), Osaka, Japan

  In 645, Emperor Kōtoku of Japan enacted the Taika Reforms, aiming to abolish clan rule and establish a centralized state modeled on Tang China, profoundly impacting Japanese history.

  SourcesWikipedia ↗

Central & South America

• Second Tikal–Calakmul War

  648–695Petén Department

  The Second Tikal–Calakmul War, fought from 648 to 695, was the second in a series of conflicts between Tikal and Calakmul, two of the most prosperous Maya cities in the Petén region during the Classic period. The war reflected the rivalry between major Maya city-states, and both cities were later abandoned amid the broader decline of Maya civilization.

  SourcesWikipedia ↗

North Africa

• Muslim conquest of the Maghreb

  647–709Maghreb

  The Arab Empire began the conquest of the Maghreb in 647, and by 698 Carthage fell, ending Byzantine presence. By 709 the conquest of Algeria and Morocco was completed, and mass Islamization of Berbers was initiated, setting the stage for the 711 conquest of Iberia.

  SourcesWikipedia ↗

West Asia

• Arab conquest of Armenia

  642–744Greater Armenia

  The Arab conquest of Armenia was a series of military campaigns launched in the mid-7th century by the Islamic polity of the Arabian Peninsula against the Byzantine-controlled region of Armenia, as part of the early Muslim conquests and the Arab–Byzantine wars.

  SourcesWikipedia ↗

Central Asian steppe

• Tang campaigns against the Western Turks

  640–712Central Asia

  A series of military campaigns conducted by the Tang dynasty against the Western Turkic Khaganate in the 7th century. The conflicts began with Tang interventions in the rivalry between the Eastern and Western Turks to weaken both. Under Emperor Taizong, campaigns were dispatched in the Western Regions against Gaochang in 640, Karasahr in 644 and 648, and Kucha in 648.

  SourcesWikipedia ↗

Around 667

These are known only to the century, not to the year. They are listed separately so a rough date is never mistaken for an exact one.

• Founding of the Tibetan Empire

  c. 601–700Lhasa

• Construction of the Dome of the Rock

  c. 601–700

• The Potala Palace as the Winter Palace of the Dalai Lamas

  c. 601–700

• Emergence of Volga Bulgaria

  c. 601–700Bolghar Gord

• Founding of the Quba Mosque

  c. 601–700

• Reconstruction of the Church of Saint Demetrius in Thessaloniki

  c. 601–700

• Founding of the Eastern Turkic Khaganate

  c. 601–700Ordu-Baliq

• Kyrgyz Khaganate's Supremacy over the Mongolian Plateau

  c. 601–700Ordu-Baliq