Moesia was an ancient region and later Roman province situated in the Balkans south of the Danube River. Moesian Province was first administered by governor of Noricum as 'Civitates of Moesia and Triballia'. It included most of the territory of modern eastern Serbia, Kosovo, north-eastern Albania, northern parts of North Macedonia, Northern Bulgaria, Romanian Dobruja and small parts of Southern Ukraine.
Sarmizegetusa Regia was the capital and the most important military, religious and political centre of the Dacians before the wars with the Roman Empire. Built on top of a 1200 m high mountain, the fortress, consisting of six citadels, was the core of a strategic and defensive system in the Orăștie Mountains.
Carnuntum was a Roman legionary fortress and headquarters of the Pannonian fleet from 50 AD. After the 1st century, it was capital of the Pannonia Superior province. It also became a large city of approximately 50,000 inhabitants.
Legio XIII Gemina, in English the 13th Twin Legion was a legion of the Imperial Roman army. It was one of Julius Caesar's key units in Gaul and in the civil war, and was the legion with which he crossed the Rubicon in January, perhaps the 10th, 49 BC. The legion appears to have still been in existence in the 5th century AD. Its symbol was the lion.
Apulon was a Dacian fortress city close to modern Alba Iulia, Romania. The Latin name of Apulum is derived. The exact location is believed by many archaeologists to be the Dacian fortifications on top of Piatra Craivii, Craiva, Cricău, about 20 km north of Alba-Iulia.
Legio V Macedonica was a Roman legion. It was probably originally levied in 43 BC by consul Gaius Vibius Pansa Caetronianus and Gaius Julius Caesar Octavianus. It was based in the Balkan provinces of Macedonia, Moesia and Dacia. In the Notitia Dignitatum records from beginning of the fifth century, the legion was still stationed in Dacia, with detachments stationed in the east and Egypt.
Porolissum was an ancient Roman city in Dacia. Established as a military fort in 106 during Trajan's Dacian Wars, the city quickly grew through trade with the native Dacians and became the capital of the province Dacia Porolissensis in 124. The site is one of the largest and best-preserved archaeological sites in modern-day Romania. It is 8 km away from the modern city of Zalău, in Moigrad-Porolissum village, Mirsid Commune, Sălaj County.
The Third Battle of Tapae (101) was the decisive battle of the first of Trajan's Dacian Wars, in which the Roman Emperor defeated the Dacian King Decebalus's army. Other setbacks in the campaign delayed its completion until 102. The battle is most likely the battle-scene depicted on Plate 22 of Trajan's column.
Trajan's First Dacian War took place from 101 to 102.
Ratiaria was a city founded by the Moesians, a Daco-Thracian tribe, in the 4th century BC, along the river Danube. In Roman times it was named Colonia Ulpia Traiana Ratiaria.
Ulpia Traiana Sarmizegetusa was the capital and the largest city of Roman Dacia, named after Sarmizegetusa the former Dacian capital, located some 30 km away. The present village of Sarmizegetusa has been built over parts of it.
Romanian archaeology begins in the 19th century.
Buridava (Burridava) was a Dacian town situated in Dacia, later Dacia Apulensis, now Romania, on the banks of the river Aluta, now Olt.
Germisara was a fort in the Roman province of Dacia, in modern day Romania, in the village area of Cigmău, in Romania.
Apulum was a legionary fortress in the Roman province of Dacia from the 2nd to 4th centuries AD, located in today's Alba Iulia, Romania.
Potaissa was a legionary fortress and later a city in the Roman province of Dacia, located in today's Turda, Romania.
Roman Dacia was a province of the Roman Empire from 106 to 271–275 AD. Its territory consisted of what are now the regions of Oltenia, Transylvania and Banat. During Roman rule, it was organized as an imperial province on the borders of the empire. It is estimated that the population of Roman Dacia ranged from 650,000 to 1,200,000. It was conquered by Trajan (98–117) after two campaigns that devastated the Dacian Kingdom of Decebalus. However, the Romans did not occupy its entirety; Crișana, Maramureș, and most of Moldavia remained under the Free Dacians.
This section of the timeline of Romanian history concerns events from Late Neolithic until Late Antiquity, which took place in or are directly related with the territory of modern Romania.
In Roman Dacia, an estimated 50,000 troops were stationed at its height.
Romania 
National Historical Monument
