Legendary strongman commonly known as "The Mighty Atom." His various feats of strength have been featured in the Guinness Book of World Records and Ripley's Believe It or Not.
He was a sickly child whom doctors predicted would succumb to tuberculosis as a teenager.
He performed as a strongman for nearly his entire adult life, performing for audiences at venues like Madison Square Garden well into his 80's.
His son, Mike Greenstein, performed strongman feats on America's Got Talent at 93 years of age.
He and Mariusz Pudzianowski are both former strongmen from Poland.