Home treadmills are very popular fitness machines that have improved dramatically over the last 20 years. They come in a wide variety of shapes, sizes, and price ranges, so most people can find a suitable home treadmill regardless of their budget.The history of treadmills, though, goes back farther than you might think. Would you believe that the first treadmills appeared in 1875? It's true, and they have been evolving and changing ever since.The Beginnings of Home TreadmillsThe first "home"…See More