The great strongman Siegmund Breitbart
toured the United States in the 1920's, performing feats of strength AND amazing crowds wherever he went.
Here's a clipping from the Chicago News, October 22nd, 1923, showing Breitbart demonstrating his nail driving ability -- pounding a nail through a one-inch thick oak board with nothing but his bare hand.Nail Driving
is one of the classical strongman feats, one that not only wows 'em
every time but also one that builds tremendous strength in the shoulder and upper body. Several "oldtime" boxers actually practiced nail driving in order to build striking power.