Vespasian was the first emperor of the Flavian Dynasty; he took power in 69 CE and ruled until his death in 79 CE. Titus was Vespasian's eldest son and succeeded Vespasian after his death, ruling for just two years before his death from an unknown illness.

All three of these natural disasters befell the Roman Empire in extremely short order in Titus first year of rule (79 CE). The devastation wrought on Pompeii and surrounding regions following the eruption of Mt. Vesuvius was immediately followed by a large, devastating fire in Rome and a plague in the aftermath of the fire.

Vespasian's rule marked the beginning of the Flavian dynasty, at the end of a year during which three other emperors previously ruled (Galba, Otho, and Vitellius). Before them, Nero had been emperor. As such, the other answers are incorrect.

The eruption of Mt. Vesuvius in 79 CE, destroyed the two Roman cities of Pompeii and Herculaneum, burying the two cities underneath dozens of feet of ash and killing thousands of people.

It remains as one of the most deadly volcanic eruptions in world history.

The Roman Coliseum, also called the Flavian Amphitheatre, was built during the reign of Emperor Vespasian and was finally completed shortly after Vespasian died (during the reign of Emperor Titus, Vespasian’s son). The Coliseum was used to stage gladiatorial battles and other public exhibitions.

The key to this question is the transition from the Julio-Claudian dynasty into the Flavian dynasty. As power shifted from the senate/militia into imperial power, four main emperors fought this war to gain ownership of the throne. Caesar ruled the dynasty before, the Marian Sullan war represents the first civil war in Roman history, and the other three options were fought in the common era- long after the Julio Claudian dynasty ended

The Flavian Dynasty ruled from 69 CE to 96 CE. It began with the rule of Vespasian, who took power during the turbulent period known as the Year of Four Emperors. Vespasian was succeeded by his son Titus, who ruled for two years, before himself being succeeded by Domitian. Domitian ruled for fifteen years before he was assassinated on the orders of the Senate.

The Nerva-Antonine Dynasty ruled the Roman Empire from 96 to 192 CE. After the fall of the Nerva-Antonine Dynasty, the Roman Empire entered into a turbulent period known as the Year of the Five Emperors. This civil war was eventually ended when Septimius Severus took power and founded the Severan Dynasty.

The Flavian Dynasty was a short lived, but influential ruling dynasty in Roman history. The first Flavian ruler, Vespasian, came to power in 69 CE, bringing to an end the turbulent period known as the Year of Four Emperors. The Roman Coliseum (also called the Flavian Amphitheatre) was built during the reign of Vespasian and his successor Titus. During the reign of Titus, a great fire destroyed large parts of Rome and a devastating eruption of Mount Vesuvius obliterated the city of Pompeii. The assassination of Domitian (the third and final Flavian Emperor) took place in 96 CE and brought to an end the rule of the Flavian Dynasty. Although the Flavian Emperors tried to conquer Dacia, this would not be completed until the reign of Trajan.

The Flavian Dynasty, which ruled from 69 to 96 CE, was succeeded by the Nerva-Antonine Dynasty. The Nerva-Antonine Dynasty begins with the reign of Nerva and ends with the reign of Commodus. The Nerva-Antonine Dynasty included the period of prosperity in the Roman Empire known as the rule of the Five Good Emperors.