Article snapshot taken from Wikipedia with creative commons attribution-sharealike license.
Give it a read and then ask your questions in the chat.
We can research this topic together.
Trajan is the first Roman Emperor born in a Roman province (Italica, near Seville). A brilliant soldier and administrator, he enters Rome without ceremony, and wins over the public. Continuing the policies of Augustus, Vespasian and Nerva, he restores the Senate to its full status in the government. He has a specific vision of the Empire, and keeps a close watch on finances. Taxes, without any increase, are sufficient during his reign to pay the considerable costs of the budget.
The informers used to Domitian to support his tyrany are expelled from Rome.