Moesia
Istros destroyed by Skythians.
Istros undergoes significant damage in a revolt by Pontic Greeks.
The Getai besiege Istros and are bribed to withdraw.
The Bastarni people destroy Istros.
The Bastarni people defeat the Roman consul Gaius Antonius Hybrida at Istros.
The Dacian king Burebista takes Istros.
Crassus undertakes a military campaign against the Bastarni and annexes Istros.
Nicopolis ad Istrum is founded by Trajan.
Nicopolis ad Istrum is sacked by the Costoboci.
Septimius Severus and Caracalla thank Nicopolis ad Istrum for celebrating a festival and sending money.
Caracalla has an unpleasant experience in Nicopolis ad Istrum and strips its title of Ulpia.
Istros is razed to the ground by the Goths.
June
Trajan Decius and Herennius Etruscus defeat a Gothic army at the Battle of Nicopolis ad Istrum.
The walls of Istros are destroyed again by the Goths.
Constantine I funds major changes to the agora at Nicopolis ad Istrum.
Nicopolis ad Istrum is destroyed by the Huns under Attila.