Upper Deck extended the concept to bats of all of the members of baseball's 500 Home Run Club.
These have included cards of Mark McGwire, Sammy Sosa, Ken Griffey, Jr., Rafael Palmiero, Frank Thomas and Jim Thome.
Some of these events include: Lou Gehrig's "Luckiest Man Alive" Speech (July 4, 1939); Babe Ruth's "Final Visit to Yankee Stadium" (June 11, 1948); Joe Louis vs. Max Schmeling heavyweight title bout (June 19, 1936, Schmeling won), the 1958 NFL Championship Game between the New York Giants and the Baltimore Colts and Muhammad Ali's title defense against Ken Norton (Sept. 28, 1976).
[12] The various sets where the Yankee Stadium Legacy cards were inserted into were: Spectrum; Ballpark Collection; Piece of History; SPx; Upper Deck Series Two; SP Legendary Cuts (Hobby-only); SP Authentic; UDx; and UD Masterpieces.
Upper Deck started a website so that collectors could find out more about the Yankee Stadium Legacy set.
Tommy Baxter, a 36-year-old from Little Rock, Arkansas, was the first collector to put together Upper Deck's Yankee Stadium Legacy (YSL) Collection.
Baxter was an avid Cubs fan, and seized the opportunity to become the first collector to piece together the insert set.
The massive 2,500 card set commemorated the last twenty years in sports, pop culture, politics, world history and technology.
Articles such as a woolly mammoth femur, Tyrannosaurus Rex tooth, and Triceratops vertebrae were other items found in the bone fragments cards.