What factors determined the evolution?
How much of an effect did technology or the lack of it have?
Were some manufactoring processes standardized?
How was mass-production handled?
What sort of materials were used?
What caused the transition from one type of weapons and armour to another?
How long were weapons and armour of a certain type used for?
What effect did the socio-economic structure have?
Frankly spoken, this question is much too broad in all aspects to be answered here in a closely adequate manner. The timespan is immense, the geographical area is huge and so it's the range of weapons and all things concerned to them. This topic covers meters and meters of bookshelves in a library.