"If the Shoe Fits" - more history

Some interesting stuff if you've known nothing but plastic spike plates and screw in spikes

http://www.designboom.com/design/adi-dasslers-first-shoes-an-exhibition-by-adidas/

and more here on the split between the Dassler brothers that gave us the Puma brand

http://www.oki-ni.com/daily/2013/05/history-of-running-shoes-part-2-adolf-and-rudolf-dassler