What year did topps make the first factory set?

Answer 1

The 1976 Topps Traded set was the first. The set contained 44 cards. A "Sports Extra" heading design is found on each picture. Each card is numbered according to the player's regular 1976 card with the addition of "T" to indicate his new status. A Traded Set is a set of cards, usually factory packaged, that features players who switched teams during the season, as well as those who made their debuts. Topps, who started this trend every year since 1981, is most well known for traded sets. Other companies also produce traded sets, although they refer to them by different names such as "Update" (Fleer) and "Rookie/Traded" (Score) sets.

Answer 2

topps Baseball trading cards started in 1952