The 500 card first series set was issued in November, 2001. The 245-card second series set was issued in May, 2002. The cards were issued in eight card packs with 24 packs to a box. Subsets include Star Rookies (cards numbered 1-50, 501-545), World Stage (cards numbered 461-480), Griffey Gallery (481-490) and Checklists (491-500, 736-745) and Year of the Record (726-735). Star Rookies were inserted at a rate of one per pack into second series packs, making them 1.75X times tougher to pull than veteran second series cards.