The fellow above, Albert Azaryan was a Armenian gymnast who competed internationally for the Soviet Union. Azaryan is the 1956 and 1960 Olympic Champion on the still rings and the first ever gymnast to become an Olympic Champion in Rings twice. Azaryan actually originated a variation of the Iron Cross which was eventually named for him, which incorporates a very difficult quarter turn to the side, a simply mind boggling display of shoulder strength.
Much of the origins of strength training and physical culture come from gymnastics. The Iron Cross as performed on gymnastic rings, is one of the most impressive gymnastic feats. It takes a great deal of strength and plenty of skill to perform The Iron Cross properly.