Calendar overview 729
|Ceolwulf succeeds Osric as King of Northumbria .|
|729 in other calendars|
|Armenian calendar||177/178 (turn of the year July)|
|Buddhist calendar||1272/73 (southern Buddhism); 1271/72 (alternative calculation according to Buddha's Parinirvana )|
|Chinese calendar||57th (58th) cycle|
|Chula Sakarat (Siam, Myanmar) / Dai calendar (Vietnam)||91/92 (turn of the year April)|
|Iranian calendar||107/108 (around March 21)|
|Islamic calendar||110/111 (April 4th / 5th)|
|Jewish calendar||4489/90 (August 28-29)|
ab urbe condita MCDLXXXII (1482)
Diocletian's era : 445/446 (New Year November)
|Seleucid era||Babylon: 1039/40 (turn of the year April)
Syria: 1040/41 (turn of the year October)
|Vikram Sambat (Nepalese Calendar)||785/786 (turn of the year April)|
- March 20 : The Japanese Prince Nagaya is forced to commit suicide by Tennō Shōmu at the height of the Nara period because of an alleged conspiracy.
- May 9th : Ceolwulf succeeds Osric as King of Northumbria .
- Óengus I. defeats and kills Drest VII in the fight for rule as King of the Picts at Dromo Dergg Blathuug.
- 729 or 731 : Abū Yūsuf Yaʿqūb ibn Ibrāhīm ibn Habīb al-Kūfī , co-founder of the Hanafi school of law in Sunni Islam († 798 )
- March 20 : Nagaya , Japanese prince (* 684 ?)
- May 9 : Osric , King of Northumbria
- Drest VII , King of the Picts