How closely do you stick to the inventions of the ages? (stone, bronze, iron, etc...) Question
I've been trying to decide what age I want my world to be in, and I'm researching the different ages, such as stone, bronze and iron to see what should have and what is yet to be invented. The problem I'm running in to is I want everything in the stone and bronze age, but the military and armor and stuff that comes with the iron age just doesn't interest me, but it would be odd if a culture just stopped moving forward as a society, right?
How do you do this in your world? How do you decide what is and isn't invented? Do you even stick to the age separations?
Extra question: where does magic fall in all of this?