On this day in history, March 15, 1869, Cincinnati Red Stockings become first professional baseball team
How the 1869 Cincinnati Red Stockings turned baseball into a national sensation
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1869 Red Stockings: Who were the first professional baseball team?
1869 Red Stockings: Who were the first professional baseball team?
Robert Edward Auctions - The Premiere Sports Auction House
Guest Commentary: Here's How Cincinnati Turned Baseball into a National Sensation, Sports & Recreation, Cincinnati
The First Boys of Summer: The Eighteen book by John Erardi
On this day in history, March 15, 1869, Cincinnati Red Stockings become first professional baseball team
The 1869 Red Stockings: The Team That 'Made Baseball Famous
Trips by the 1869 Cincinnati team made the game famous
Six-guns & Sluggers - True West Magazine
Cincinnati Reds - Today in Reds history, 1869: The Red Stockings, baseball's first all-professional nine, play their first regular season game. They win 45-9 over the Great Westerns of Cincinnati.
20 Best Professional Baseball Books of All Time - BookAuthority