On this week's episode of SABRcast Rob Neyer is joined by a panel of experts to discuss the various upstart leagues in the first half of baseball's history and how they should, or should not, be characterized. Joining Rob on the show is Warren Corbett who has written extensively about the Continental and Global Baseball Leagues, Dan Levitt author of a book on the Federal League and Justin McKinney, author of a book on the Union Association. Rob wraps the show by discussing his winner of the weekend and what he's been reading. For show notes, extra content, and a list of what Rob's reading, visit the SABRcast website at https://sabr.org/sabrcast.