How do we get the Polybian and Marian Reforms?

[Charging_Knight]

Hey guys can anyone tell me how do we get the Polybian and Marian reforms?Like is it a timed event or does it occur when certain research or provinces is done or conquered?And are there any other reform dates or particular trigger moments for certain special unit reforms,etc?:hmmm:

[Foot]

Read the FAQ on the main forum, it has all the information you need.

Foot