Year 907 (CMVII) was a common year starting on Thursday (link will display the full calendar) of the Julian calendar.
The Five Dynasties and Ten Kingdoms period begins in China.
February 27 – Yelü Abaoji, Great Khan of the Khitan people, is enthroned as Emperor Taizu of Liao, establishing the Liao dynasty in northern China.
May 12 – The short-lived Qi kingdom is founded by Li Maozhen, in northwest China.
June 1
The Tang dynasty ends with an abdication to Later Liang, founded by Zhu Wen in northern China, first of the Five Dynasties.
The Former Shu kingdom is founded by Wang Jian in Chengdu, first of the Ten Kingdoms.
The Wuyue kingdom is founded by Qian Liu in Hangzhou.
Oleg of Novgorod leads the Kievan Rus' in a campaign against Constantinople, in the Rus'–Byzantine War, concluded by the Rus'–Byzantine Treaty (in which the city of Chernihiv in the Ukraine is first mentioned).
July 4–7 – Battle of Pressburg: At "Brezalauspurc" (probably modern-day Bratislava in Slovakia), the advancing East Francian army is annihilated by the Hungarians. Luitpold, Margrave of Bavaria and Dietmar I, Archbishop of Salzburg are killed, together with 19 dukes, 2 bishops and 3 abbots; thus East Francia loses control of the March of Pannonia.
February 1 – Nicholas Mystikos is deposed as Ecumenical Patriarch of Constantinople, (having fallen out with the Byzantine Emperor Leo VI), and is replaced by Euthymius Syncellus.
Approximate date – Wenceslaus I, Duke of Bohemia (murdered 935)
Bertha of Swabia, queen
May 2 – Boris I, Knyaz (Prince) of the First Bulgarian Empire (852–889)
Probable date – Árpád, Hungarian ruling prince (ruled 895–907)
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