|929 by topic|
|Ab urbe condita||1682|
|Balinese saka calendar||850–851|
|Chinese calendar||戊子年 (Earth Rat)
3625 or 3565
— to —
己丑年 (Earth Ox)
3626 or 3566
|- Vikram Samvat||985–986|
|- Shaka Samvat||850–851|
|- Kali Yuga||4029–4030|
|Japanese calendar||Enchō 7
|Minguo calendar||983 before ROC
|Seleucid era||1240/1241 AG|
|Thai solar calendar||1471–1472|
1055 or 674 or −98
— to —
1056 or 675 or −97
|Wikimedia Commons has media related to 929.|
- January 16 – Emir Abd-al-Rahman III of Córdoba proclaims himself caliph and creates the Caliphate of Córdoba. He breaks his allegiance to, and ties with, the Fatimid and Abbasid caliphs.
- February 3 – Guy (the Philosopher) of Tuscany, second husband (third lover) of the Roman noblewoman Marozia, dies. He is succeeded by his brother Lambert as margrave of Tuscany.
- Summer – The Slavic-Arab leader Sabir defeats a small Byzantine fleet and seizes Termoli (in Molise, on the Adriatic coast). He returns to Africa laden with booty and slaves.
- King Henry I (the Fowler) invades with a East Frankish army Bohemia from the north and marches on Prague. Duke Arnulf I of Bavaria invades Bohemia from the south.
- September 4 – Battle of Lenzen: Slavic forces (the Redarii and the Obotrites) are defeated by a Saxon army near the fortified stronghold of Lenzen (modern Germany).
- October 7 – Former king Charles III (the Simple) of dies in prison at Péronne, leaving Rudolph with no opposition except that of Herbert II, count of Vermandois.
- Mpu Sindok, ruler of the Mataram Kingdom, moves his court from Central Java to East Java (modern Indonesia). Probably after the eruption of Mount Merapi and/or invasion from Srivijaya.
- Pope Leo VI dies at Rome after a 7-month reign. He is succeeded (probably handpicked–by Marozia from the Tusculani family) by Stephen VII as the 124th pope of the Catholic Church.
- September 29 – Qian Chu, king of Wuyue (d. 988)
- Fujiwara no Kaneie, Japanese statesman (d. 990)
- Kishi Joō, Japanese female waka poet (d. 985)
- William, archbishop of Mainz (d. 968)
- January 28 – Gao Jixing, founder of Chinese Jingnan (b. 858)
- February 3 – Guy (the Philosopher), margrave of Tuscany (Italy)
- March 26 – Wang Du, Chinese warlord and governor (jiedushi)
- June 7 – Ælthryth, English princess and countess of Flanders (b. 877)
- October 7 – Charles III (the Simple), Frankish king (b. 879)
- Abu Ali al-Husayn ibn Ahmad al-Madhara'i, Abbasid fiscal director
- Abu'l-Musafir al-Fath, Sajid emir of Azerbaijan (Iran)
- Al-Batani, Muslim astronomer and mathematician
- Ashot II, king of Armenia (approximate date)
- Cui Xie, Chinese official and chancellor
- Gao Yu, Chinese chief strategist
- Indra III, ruler of Rashtrakuta (India)
- Leo VI, pope of the Catholic Church
- Lothar I, Frankish nobleman (b. 902)
- Lothar II, Frankish nobleman (b. 874)
- Padla II, prince of Kakheti (Georgia)
- Sancho Ordóñez, king of Galicia (Spain)
- Thumal the Qahraman, Abbasid female judge
- Zhao Jingyi, Chinese general and governor