In 1989, fledgling company Upper Deck released its first set of MLB trading cards. The highlight was the Griffey rookie card. Darren Rovell, writing for Slate, explained the phenomenon:
"The Griffey card was the perfect piece of memorabilia at the perfect time. The number the card was given only furthered the prospect of his cardboard IPO. Junior was chosen to be card No. 1 by an Upper Deck employee named Tom Geideman, a college student known for his keen eye for talent.
Geideman earned his rep by consistently clueing in the founders of The Upper Deck, the card shop where the business was hatched, on which players would be future stars. Geideman took the task of naming the player for the first card very seriously.
Using an issue of Baseball America as his guide, Geideman knew that card No. 1 would belong to Gregg Jefferies, Sandy Alomar Jr., Gary Sheffield, or a long-shot candidate, the phenom they called 'The Kid.'"
