19th Century Baseball : is alive and well at Genesee Country Museum in New York. Each weekend, teams square off in replica jerseys. Equiptment and rules are exactly what you would have found in 1866. Much has changed since 1866 ... check out era related baseball slang. This isn't the only vintage baseball league ... there's more in Long Island, Burlington, Scarbourough, and Massachusetts. Want to start your own club? Try visiting the Vintage Baseball Association.