We don’t always know the best baseball cards are important right away. They just sit there. In packs. In binders. In shoe boxes. In the hands of people who like the player before the market decides it should care. Then time passes, the story gets bigger, and suddenly that early card becomes proof someone was paying attention before everyone else caught up.The Women’s Pro Baseball League does not have that kind of cardboard history yet. It doesn’t have decades of flagship sets or annual checklist complaints or oddball releases waiting in dollar boxes. The league has not played its first game, but through a new partnership with The Realest, it is already creating its first official card record.For collectors, the interesting part is that the WPBL and The Realest are documenting the beginning as it happens.The WPBL will debut Aug. 1 at Robin Roberts Stadium in Springfield, Ill., with four teams representing Boston, Los Angeles, New York and San Francisco. The Realest, founded by Scott Keeney, better known as DJ Skee, will create what the company and the league describe as the first officially licensed, league-wide trading card program for an active women’s professional baseball league in the United States.The cards are expected to include historical photos, action images from the league’s first games and relic cards using authenticated game-used equipment. The Realest will also serve as the league’s official memorabilia authentication partner, using its TRuEST witness-based verification system to authenticate baseballs, jerseys, lineup cards, field dirt, patches and other items. Details such as checklist size, release format, pricing and distribution for the cards have not yet been announced.Starting from scratch gives the WPBL some room most card products do not get. It does not have to inherit the hobby’s old rules before it even has a box score. The cards can introduce the league, build early fan habits and give collectors something to care about before the market chimes in.“The way that we’ve approached this is building an end-to-end program that combines trading cards, memorabilia and culture,” Keeney said. Cards for a new league cannot just look nice and call it a day. They have to introduce players, teach fans the teams and give people a physical reason to care before there are years of stats, rivalries and local habits doing the work.When asked why trading cards became part of the league’s launch plan, WPBL commissioner and co-founder Justine Siegal’s answer was immediate.“Well, I can’t imagine having a league and not having a trading card,” Siegal said. “I mean, it’s baseball. They’re synonymous. Baseball cards and baseball.”