The 100s was a decade that ran from January 1, AD 100, to December 31, AD 109.
Year 101 (CI) was a common year starting on Friday of the Julian calendar. At the time, it was known as the Year of the Consulship of Traianus and Paetus. The denomination 101 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.
Dacia was the land inhabited by the Dacians, its core in Transylvania, stretching to the Danube in the south, the Black Sea in the east, and the Tisza in the west. The Carpathian Mountains were located in the middle of Dacia. It thus roughly corresponds to the present-day countries of Romania, as well as parts of Moldova, Bulgaria, Serbia, Hungary, Slovakia, and Ukraine.
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.
Decebalus, sometimes referred to as Diurpaneus, was the last Dacian king. He is famous for fighting three wars, with varying success, against the Roman Empire under two emperors. After raiding south across the Danube, he defeated a Roman invasion in the reign of Domitian, securing a period of independence during which Decebalus consolidated his rule.
Legio II Traiana, was a legion of the Imperial Roman army raised by emperor Trajan, along with XXX Ulpia Victrix, for the campaigns in Dacia. Records of the II Traiana Fortis have been recovered from Egypt dating to the middle of the 5th century. The legion's emblem was the demi-god Hercules.
Trajan's Dacian Wars were two military campaigns fought between the Roman Empire and Dacia during Emperor Trajan's rule. The conflicts were triggered by the constant Dacian threat on the Danubian province of Moesia and also by the increasing need for resources of the economy of the Empire.
Domitian's Dacian War was a conflict between the Roman Empire and the Dacian Kingdom, which had invaded the province of Moesia. The war occurred during the reign of the Roman emperor Domitian, in the years 86–88 AD.
The Battle of Adamclisi was a major clash during the Dacian Wars, fought in the winter of 101 to 102 between the Roman Empire and the Dacians near Adamclisi, in modern Romania.
Trajan's First Dacian War took place from 101 to 102.
Trajan's Second Dacian War was fought between 105 and 106 because the Dacian king, Decebalus, had broken his peace terms with the Roman Emperor Trajan from the Trajan's First Dacian War.
Cornelius Fuscus was a Roman general who fought campaigns under the Emperors of the Flavian dynasty. He first distinguished himself as one of Vespasian's most ardent supporters during the civil war of 69 AD, known as the Year of the Four Emperors. Vespasian's son Domitian employed Fuscus as prefect of the Praetorian Guard, a post he held from 81 until his death.
Tiberius Claudius Maximus was a cavalryman in the Imperial Roman army who served in the Roman legions and Auxilia under the emperors Domitian and Trajan in the period AD 85–117. He is noted for presenting Trajan with the head of Dacian king Decebalus, who had committed suicide after being surrounded by Roman cavalry at the end of Dacian Wars.
The military history of Romania deals with conflicts spreading over a period of about 2500 years across the territory of modern Romania, the Balkan Peninsula and Eastern Europe and the role of the Romanian military in conflicts and peacekeeping worldwide.
The history of Dacian warfare spans from c. 10th century BC up to the 2nd century AD in the region defined by Ancient Greek and Latin historians as Dacia, populated by a collection of Thracian, Ionian, and Dorian tribes. It concerns the armed conflicts of the Dacian tribes and their kingdoms in the Balkans. Apart from conflicts between Dacians and neighboring nations and tribes, numerous wars were recorded among Dacians too.
The Battle of Sarmizegetusa was a siege of Sarmizegetusa, the capital of Dacia, fought in 106 between the army of the Roman Emperor Trajan, and the Dacians led by King Decebalus.
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.
The history of Dacia comprises the events surrounding the historical region roughly corresponding to the present territory of Romania and Moldova and inhabited by the Getae and Dacian peoples, with its capital Sarmizegetusa Regia.
The Second Battle of Tapae in 88 AD was the decisive battle of Domitian's Dacian War, in which the Roman Emperor defeated the Dacian King Decebalus's army.
Dacia 
