As I understand it, the first evidence of kilt wearing in Scotland is from the 16/17 centuries. Before then people might have worn the Irish leine tunic. Why the change? Where did the idea of wrapping a length of wool around yourself come from? Why dress differently than other people at the time? I'm sure much of the answers to this are lost to history because of a lack of sources, but what is known?

I would have thought that the midges would have encouraged trousers.