Exactly one hundred years before the Brooklyn Dodgers won the 1955 World Series, the Brooklyn Excelsiors were playing on the same grounds where the Dodgers would begin their long history. Brooklyn and its teams played a prominent role in the early history of the game and reigned as champions of baseball’s first organized league through most of the 1860s. This work chronicles the early years of organized baseball (1855-1884) in Brooklyn when it was the center of the baseball universe. In addition to discussing the early clubs and players, this work examines the transformation of baseball from a recreational pursuit of gentlement’s clubs to a professional spectator sport. It also reveals much about the social norms, gender and race relations, and the role of the media in the early game and covers the many firsts that are attributed to early Brooklyn teams, such as having the first paid player, tragic hero and curveball pitcher and being the first team to take road trips, play in enclosed ball parks, charge admission. Notably, they were heralded by the most famed sports journalist of the nineteenth century.