I do try and get back stories and have docs on ones I can. Original owner receipts, builder emails, research etc.

Recently considered putting a little tag on each that I don't ride regularly. Probably sounds odd but I get people over and have my bikes fairly organized. I find myself explaining sometimes but think it might be cool to have a little tag with specs and a short story if applicable. Would give my buddies something to do while I tinker or have beers. Or family at get togethers may find a better understanding of why I have bikes all over the place. Or possibly think I am even more crazy. Haha!