Though Hadrian's career had long been guided by Trajan, when the Emperor died in 117 he still had not named Hadrian heir.
The History of Rome - 080- Optimus Trajan
Trajan greatly improved the infrastructure of the Empire and finished his reign by conquering much of the Middle East.
The History of Rome - 079- The Dacian Wars
After Trajan ascended to the throne in 98 AD he fought two wars against the Dacians, finally annexing the country in 106 AD.
The History of Rome - 078- Imperial Stop Gap
Nerva's brief reign was stormy, but his choice of Trajan as heir was inspired.
The History of Rome - 077- What Time is It?
After Saturninus's revolt in 89 AD, Domitian's paranoia increased. In 96 AD court officials afraid for their lives conspired to have the Emperor killed.
The History of Rome - 076- Mock Triumphs
Domitian attempted to emulate Augustus, but his heavy-handed treatment of the Senate earned him many enemies. Meanwhile, his focus on frontier defense brought charges of cowardice and his treaty with the Dacians was seen as a humiliation.
The History of Rome - 075- The Forgotten Son
Domitian had spent his life in the background, but in 81 AD he found himself Emperor and soon demonstrated that he had very strong ideas about how to wield power.
The History of Rome - 074- Friends I Have Wasted a Day
Titus succeeded his father to the throne in 79 AD, but ruled for only two years before dying of a sudden infection in 81. Throughout the reign of the Flavians, Agricola campaigned in Britain to Romanize the island.
The History of Rome - 073- The Only Man Who Improved
Vespasian served as Emperor from 69-79 AD, stabilizing the Empire after a year of Civil War.
The History of Rome - 072- Vitellius and Vespasian
Vitellius's reign was underminned by internal squabbling, allowing Vespasian's army to sieze Rome in December 69 AD.