Year 905 (CMV) was a common year starting on Tuesday (link will display the full calendar) of the Julian calendar.
Spring – King Berengar I of Italy arranges a truce with the Hungarians on payment of a tribute. Grand Prince Árpád withdraws from Italy and begins raiding in Bavaria.
King Louis III (the Blind) launches another attempt to invade Italy. An Frankish expeditionary force led by Adalbert I captures Pavia, and Berengar I retires to Verona.
July 21 – Berengar I and a hired Hungarian army defeats the Frankish force at Verona. They take Louis III as prisoner and Berengar blinds him for breaking his oath.
Louis III returns to Provence, unable to govern properly, he relinquishes the government of Lower Burgundy to his cousin Hugh, Count of Arles.
Sancho I succeeds Fortún I as King of Pamplona, and creates a Basque kingdom centered in Navarre (modern Spain).
Cadell ap Rhodri, king of Seisyllwg (Wales), makes his 25-year-old son Hywel ap Cadell ruler of Dyfed, having conquered that territory. Rhodri ap Hyfaidd, nominally king of Dyfed, is caught and executed, at Arwystli.
Norse settlers under the Viking warlord Ingimundr, revolt against the Mercians and try to capture the city of Chester. They are beaten off.
Summer – Caliph Al-Muktafi sends an Abbasid army (10,000 men) led by Muhammad ibn Sulayman to re-establish control over Syria and Egypt. The campaign is supported from the sea by a fleet from the frontier districts of Cilicia under Damian of Tarsus. He leads his ships up the Nile River, raids the coast, and prevents the supplies for the Tulunids.
Ahmad ibn Kayghalagh, an Abbasid military officer, is appointed governor of the provinces of Damascus and Jordan. He is send to confront a pro-Tulunid rebellion under Muhammad ibn Ali al-Khalanji. The latter manages to capture Fustat and proclaims the restoration of the Tulunids, while the local Abbasid commander withdraws to Alexandria.
China loses control over Annam (modern Vietnam). The village notable Khuc Thua Du leads a rebellion against the Tang Dynasty. The Chinese garrison at Tong Binh (present-day Hanoi) is destroyed. Khuc Thua Du declares Annam autonomous.
Abaoji, an Khitan tribal leader, leads 70,000 cavalry into Shanxi (Northern China) to create a 'brotherhood' with Li Keyong, a Shatuo governor (jiedushi) of the Tang Dynasty.
Emperor Daigo of Japan orders to select four court poets, led by Ki no Tsurayuki, to compile the Kokin Wakashū, an early anthology of Waka poetry.
Naum of Preslav, a Bulgarian missionary, founds a monastery on the shores of Lake Ohrid (modern-day Macedonia), which later receives his name.
Abu al-Misk Kafur, Muslim vizier (d. 968)
Al-Mustakfi, Abbasid caliph (d. 949)
Constantine VII, Byzantine emperor (d. 959)
Fulk II, Frankish nobleman (approximate date)
Godfrey, Frankish nobleman (approximate date)
March 17 – Li Yu, prince of the Tang Dynasty
July 5 – Cui Yuan, Chinese chancellor
July 5 – Dugu Sun, Chinese chancellor
July 5 – Lu Yi, Chinese chancellor (b. 847)
July 5 – Pei Shu, Chinese chancellor (b. 841)
July 5 – Wang Pu, Chinese chancellor
Du Hong, Chinese warlord
Gai Yu, Chinese warlord
Pei Zhi, Chinese chancellor
Rhodri ap Hyfaidd, king of Dyfed
Yang Xingmi, Chinese governor (b. 852)
905 Wikipedia (Text) CC BY-SA