View source for AD 105

=== By place ===

==== Roman Empire ====
* Emperor [[Trajan]] starts the second expedition against [[Dacia]];<ref name=leglay>{{cite book | title=A History of Rome | edition=Second | first1=Marcel | last1=LeGlay | first2=Jean-Louis | last2=Voisin | first3=Yann | last3=Le Bohec | page=271 | publisher=Blackwell | place=Malden, Massachusetts | year=2001 | isbn=0-631-21858-0}}</ref> he leaves with the [[Roman navy|Imperial Roman fleet]] from [[Brundusium]]. 
* Permanent ''[[castra|castrum]]'' of [[Legio II Adiutrix]] at [[Aquincum]] (modern [[Budapest]]) in [[Pannonia]].
* [[Legio XXX Ulpia Victrix|Legio XXX ''Ulpia Victrix'']] and [[Legio II Traiana Fortis|II ''Traiana Fortis'']] are created by Trajan.
* The Romans conquer [[Kerak]] from the [[Nabateans]].
* [[Pacorus II of Parthia]] dies after a 27-year reign, in which he has reclaimed all of his empire. His successor [[Vologases III of Parthia|Vologases III]] reigns until 147 AD, suppressing brief rebellions, as he battles against the [[Kushan Empire|Kushan]] and [[Alans|Alani]].

==== Asia ====
* Emperor [[Emperor He of Han|He Di]] dies after a 17-year reign in which court [[eunuch]]s and the emperor's in-laws have regained influence. Empress [[Empress Deng Sui|Deng Sui]] places her son [[Emperor Shang of Han|Shang Di]] (barely 3 months old) on the [[throne]], as the fifth [[List of rulers of China|emperor]] of the Chinese Eastern [[Han dynasty]].
* Last year (17th) of ''yongyuan'' era and start of ''yuanxing'' era of the Chinese Eastern Han dynasty. {{clarification needed|date=August 2024}}
* A peace treaty is signed between [[Baekje]] and [[Silla]] in the [[Korean peninsula]] (the war started in [[AD 85]]).