Civitas Tropaensium was a Roman castrum situated in Scythia Minor

Scythia Minor

Scythia Minor, "Lesser Scythia" was in ancient times the region surrounded by the Danube at the north and west and the Black Sea at the east, corresponding to today's Dobruja, with a part in Romania and a part in Bulgaria....

 in modern Constanţa County

Constanta County

Constanța is the name of a county in the Dobruja region of Romania. Its capital city is also named Constanța.-Demographics:In 2002, it had a population of 715,151 and the population density was 101/km². The degree of urbanization is much higher than the Romanian average. In recent years the...

, Romania

Romania

Romania is a country located at the crossroads of Central and Southeastern Europe, on the Lower Danube, within and outside the Carpathian arch, bordering on the Black Sea...

. Its site is now the modern settlement of Adamclisi

Adamclisi

Adamclisi is a commune in Constanţa County, in the Dobrogea region of Romania.-History:In ancient times, a Roman castrum named Civitas Tropaensium was settled here and in 109 AD a monument named Tropaeum Traiani was built to commemorate the Roman Empire's victories over the Dacians.Colonized with...

. It was colonized with Roman veterans of the Dacian Wars, was the largest Roman city of Scythia Minor and became a municipium

Municipium

Municipium , the prototype of English municipality, was the Latin term for a town or city. Etymologically the municipium was a social contract between municipes, the "duty holders," or citizens of the town. The duties, or munera, were a communal obligation assumed by the municipes in exchange for...

 around 200AD.

In 109 AD a monument named Tropaeum Traiani

Tropaeum Traiani

The Tropaeum Traiani is a monument in Roman Civitas Tropaensium , built in 109 in then Moesia Inferior, to commemorate Roman Emperor Trajan's victory over the Dacians, in 102, in the Battle of Tapae. The monument was erected on the place where legio XXI Rapax had previously been defeated in 92...

 was built to commemorate the Roman Empire

Roman Empire

The Roman Empire was the post-Republican period of the ancient Roman civilization, characterised by an autocratic form of government and large territorial holdings in Europe and around the Mediterranean....

's victories over the Dacians

Dacians

The Dacians were an Indo-European people, very close or part of the Thracians. Dacians were the ancient inhabitants of Dacia...

.
The city was destroyed by the Goths

Goths

The Goths were an East Germanic tribe of Scandinavian origin whose two branches, the Visigoths and the Ostrogoths, played an important role in the fall of the Roman Empire and the emergence of Medieval Europe....

, but it was rebuilt during Constantine the Great's rule with improved defensive walls. Civitas Tropaensium survived until the Avars

Eurasian Avars

The Eurasian Avars or Ancient Avars were a highly organized nomadic confederacy of mixed origins. They were ruled by a khagan, who was surrounded by a tight-knit entourage of nomad warriors, an organization characteristic of Turko-Mongol groups...

 sacked it in 587, after which it ceased to be an important city of Dobruja

Dobruja

Dobruja is a historical region shared by Bulgaria and Romania, located between the lower Danube river and the Black Sea, including the Danube Delta, Romanian coast and the northernmost part of the Bulgarian coast...

and was no longer mentioned for seven hundred years.