Rotary Club of Chicago emblem, circa 1906
 
Vocational Service Month connects directly to Rotary's origins in 1905 Chicago as a professional networking group where members from different vocations could exchange business opportunities.
 
Paul Harris founded Rotary after feeling isolated in Chicago's impersonal business environment. Growing up in Wallingford, Vermont, with its close-knit community and interconnected business relationships, strongly influenced his later vision for Rotary. This contrasted sharply with the impersonal business culture he encountered in Chicago as an adult.
 
The original classification system ensured members weren't competitors, reducing potential conflicts and encouraging open sharing of expertise. This vocational diversity became fundamental to Rotary's growth from a business networking group into a service organization, as members could leverage their combined professional skills to address community needs.
 
At its best today's clubs continue to be a microcosm of their communities, bringing together people who might not otherwise interact; fostering trust and mutual understanding across different sectors of commerce; and replicating the interconnected relationships Paul Harris experienced in his youth.