The earliest documented professional clubs appeared in England and the United States during the 1870s, when wages allowed leisure time and rail networks made regional competition feasible. These clubs were often organized by employers who funded kits and grounds as a means of fostering loyalty and reducing labor unrest.

Across the Atlantic, American cities such as Chicago and St. Louis formed baseball clubs that doubled as civic ambassadors. By the turn of the 20th century, local leagues had standardized rules, ticketed matches, and modest stadiums, laying the institutional framework that still underpins today’s clubs.