The 640s decade ran from January 1, 640, to December 31, 649.

Events

640

By place

Europe
Britain
Africa
Asia
Emperor Taizong's campaign against the Western Regions states

By topic

Religion
Economy
  • A surge in atmospheric lead in ice core drilled in the Colle Gnifetti Glacier in the Swiss Alps signals an increase in silver mining because of economic recovery, after natural disasters in 530s and 540s.[6]

641

By place

Byzantine Empire
Europe
Britain
Africa
Asia

642

By place

Byzantine Empire
Europe
Britain
Persia
Africa
Asia

By topic

Arts and sciences
Architecture
Religion

643

By place

Byzantine Empire
Europe
Britain
Persia
Africa
Asia
  • Chinese prefectural government officials travel to the capital of Chang'an, to give the annual report of the affairs in their districts. Emperor Taizong discovers that many have no proper quarters to rest in, and are renting rooms with merchants. Therefore, Taizong orders the government agencies in charge of municipal construction to build every visiting official his own private mansion in the capital.
  • A Chinese embassy is sent to the North Indian Empire. They are invited by Emperor Harsha, who holds a Buddhist convocation at the capital Kannauj, which is attended by 20 kings and thousands of pilgrims.[10]
  • Taizong commissions artist Yan Liben to paint the life-size portraits of 24 government officials in the Lingyan Pavilion, to commemorate their service and contributions to the founding of the Tang dynasty.

By topic

Religion

644


By place

Asia
Britain
Byzantine Empire
  • Valentinus, Byzantine general, attempts to usurp the throne of his son-in-law Constans II. He appears at the gates of Constantinople with a contingent of Byzantine troops, and demands to be crowned emperor. His claim is rejected, and Valentinus is lynched by the populace.[13]
Islamic Empire

645

By place

Byzantine Empire
Europe
Britain
Japan
China

By topic

Religion

646

By place

Byzantine Empire
Arabian Empire
Africa
China
Japan

By topic

Religion

647

By place

Byzantine Empire
Asia

By topic

Astronomy and science
Religion

648

By place

Byzantine Empire
  • Emperor Constans II issues an imperial edict forbidding Monothelitism to be discussed, to quiet the intense controversy caused by the Monothelete doctrine. This edict, distributed by patriarch Paul II in Constans' name, is known as the Typos.
Europe
Britain
Asia
Americas

By topic

Literature
Religion

649

By place

Byzantine Empire
Europe
Arabian Empire
China
Japan

By topic

Religion

Significant people

Births

640

641

642

643

644

645

646

647

648

649

Deaths

640

641

642

643

644

645

646

647

648

649

References

Sources