657

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title: "657" type: doc version: 1 created: 2026-02-28 author: "Wikipedia contributors" status: active scope: public tags: ["657"] topic_path: "general/657" source: "https://en.wikipedia.org/wiki/657" license: "CC BY-SA 4.0" wikipedia_page_id: 0 wikipedia_revision_id: 0

::callout[type=note] 657 ::

::figure[src="https://upload.wikimedia.org/wikipedia/commons/a/a9/Pope_Vitalian_Illustration.jpg" caption="[[Pope Vitalian]] (657–672)"] ::

NOTOC Year 657 (DCLVII) was a common year starting on Sunday of the Julian calendar. The denomination 657 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.

Grimoald the Elder, mayor of the palace of Austrasia, is deposed by Clovis II, king of Neustria. Clovis also captures Grimoald's son Childebert the Adopted, executing them both.
Clovis II dies and is succeeded by his eldest son Chlothar III, age 5, who becomes king of Neustria and Burgundy, under the regency of his mother Balthild.

July 26 - July 28 – Battle of Siffin: Muslim forces under Ali ibn Abi-Talib fight an inconclusive battle against Mu'awiya I, on the banks of the Euphrates, near Raqqa (Syria).

Tang campaigns against the Western Turks: Emperor Gao Zong dispatches a military campaign led by Su Dingfang. He annexes the Western Turkic Khaganate.
Gao Zong commissions the pharmacology publication of an official materia medica, documenting the use of 833 different substances for medicinal purposes.

In the course of the Second Tikal–Calakmul War, the Snake Lord (Yuknoom Ch'een II) makes a direct attack against Tikal itself, driving out its new ruler Nuun Ujol Chaak, and establishing Calakmul as the regional superpower. Bʼalaj Chan Kʼawiil, the one time heir apparent to rule Tikal, swears his allegiance to the new overlord.

June 1 – Pope Eugene I dies at Rome after a reign of nearly 2½ years. He is succeeded by Vitalian as the 76th pope.
Hilda, Anglo-Saxon abbess, founds a monastery at Streaneshalch, on the Yorkshire coast at Whitby (England).

::callout[type=info title="Wikipedia Source"] This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page. ::