It is well known that various unbifurcated garments of various styles and materials have bee employed by us clever monkeys for many 1000's of years. So while the Scots didn't "invent" the kilt, nor perhaps tartan, they sure were the ones who put the two together in such an iconic style. I would say the Scottish kilt reached its highest classic art form during the Victorian period. Its pretty much a version of that we've brought with us to today. But the kilt, has migrated out of the Scottish highlands along with the Scots to all points of the globe. And once again, we are seeing new evolutions of style, fabric and construction. I must humbly disagree with those who say that the "utility" kilt etc. are not kilts. They are. Not traditional highland kilts for sure, but kilts nonetheless.