Year by year · 7th century

645 CE

645 CE in world history: 3 events and 1 death. 246 recorded states existed that year.

Events

  1. 10 July

    Prince Naka no Ōe assassinates Soga no Iruka

    Prince Naka no Ōe and Nakatomi no Kamatari killed the minister Soga no Iruka, beginning the Isshi incident, a plot to eliminate the main branch of the Soga clan. The end of Soga power opened the way to the Taika reforms.

    Soga clan

  2. 13 October

    Emperor Taizong abandons the siege of Ansi

    With winter approaching and food supplies running out, Emperor Taizong ordered the Tang army to withdraw from its siege of Ansi in the Goguryeo–Tang War. Goguryeo repulsed the first Tang invasions of 645–648.

    Emperor Taizong of TangTang Dynasty

  3. Event

    Taika Reform

    The Taika Reform was a programme of political reforms begun in Japan in 645.

ProfileState170 states with a known seat in 645 CEOpen the atlas at 645 CE →

Died in 645 CE 1

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APA
The Epoch Institute. (2026). 645 CE. In The Epoch Institute, Year by Year. https://the-epoch-institute.org/years/645
MLA
“645 CE.” The Epoch Institute, Year by Year, The Epoch Institute, 2026, https://the-epoch-institute.org/years/645. Accessed .
Chicago
The Epoch Institute. “645 CE.” The Epoch Institute, Year by Year. 2026. https://the-epoch-institute.org/years/645.
Harvard
The Epoch Institute (2026) ‘645 CE’, The Epoch Institute, Year by Year. Available at: https://the-epoch-institute.org/years/645 (Accessed: ).