Tiber Wars

The Tiber wars, also known as tiber septim's Conquest was an enormous, Conqest by Emperor Tiber Septim who ended up turning the weakened Kingdom of Tamriel in the 2nd Era, in to the Current Empire. The Conquest prompted the beginning of the Cyrodiilic Age of Tamriel. Although the Emperor's Conquest immediately pulled Tamriel out of a Dark Age and established a new and stable monarchy, it also caused the High Elves of the Aldemeri Dominion to gain a bitter hatred towards all human races of tamriel and left them feeling oppressed and vengeful for centuries afterward.

Origins of the Conquest
The somewhat mysterious land of Atmora had once been an unruly colony of Atmoans that during the Dark Age, was engulfed in domestic political dispute and at last suffered a terrible famine, forcing most of its inhabitants to abandon it. Because the three great countries of Akavir, Tamriel, and Olenweld were all battling through a related Dark Age at the time of the Ayleid society's demise, the Atmorans, a culturally militaristic people, realised that they could easily overpower the disorganised Armies of Tamriels military forces and restore the economy of the once-prosperous land of Ysgramor as well as allow their own people to recover from the great famine. The People of Tamriel said why the Tiber wars invsion of Tamriel was "a long story".

A New Age
The victorious Imperials built the Imperial City of Cyrodiil around the ayleid tower that would come to be known as the imperial palace of Cyrodiil (completed or perhaps destroyed and rebuilt permanently by the time of Uriel Septim the VII's reign), far inland from the old capital of Cair Paravel and the threatening Great Eastern Ocean, which reminded them of the "uncivilised" Old Narnians whom they had defeated. This new castle was built at the Telmarines' new capital of Beaversdam, on the other side of the Great River.

Their leader Tiber Septim was named "Emperor Tiber Septim of Tamriel I" and thus began the Septim Dynasty of Tamriel, and the ensuing reign of the 7 Septims. The next generation of those Imperials born in Cyrodiil would be known by the High Elves of The Summerset isles as "False Rulers of Tamriel". The 3rd Era as Well as The Imperial Age of Tamriel had begun.