We got a glimpse of Brooklyn’s storied baseball past last week looking through the new digitized archive of the Brooklyn Eagle for a story on the city’s great weed harvest of 1951. If you really want to grasp just how big baseball was in Brooklyn, we suggest you sign up for Gotham SideWalks’ Bike Brooklyn Baseball tour this Saturday. The three-hour, 10-mile ride will cover 100 years of America’s favorite pastime with stops at some of baseball’s most historic local spots. Brooklyn’s baseball lineage goes a lot deeper than the 1950s Dodgers’ dynasty, Jackie Robinson, Ebbets Field or even Sandy Koufax (and that’s saying something). Saturday’s weather sounds like it’ll be perfect for an afternoon ride, so put some air in your tires, purchase a $40 ticket, and be at the Old Stone House in Park Slope by 11:30am.