

Rotary International Medal commemorating the founding of the first Rotary Club in Chicago on February 23, 1905, gilt Bronze 110 mm, weight 735 g., Condition aUNC, box, very impressive and excuisite medal
Rotary started with the vision of one man — Paul Harris. The Chicago attorney formed the Rotary Club of Chicago on 23 February 1905, so professionals with diverse backgrounds could exchange ideas and form meaningful, lifelong friendships.
Over time, Rotary’s reach and vision gradually extended to humanitarian service. Members have a long track record of addressing challenges in their communities and around the world.
At the 1950 Rotary International Convention in Detroit, Michigan, USA, two slogans were formally approved as the official mottoes of Rotary: He Profits Most Who Serves Best and Service Above Self. The 1989 Council on Legislation established Service Above Self as the principal motto of Rotary because it best conveys the philosophy of unselfish volunteer service. He Profits Most Who Serves Best was modified to They Profit Most Who Serve Best in 2004 and to its current wording, One Profits Most Who Serves Best, in 2010.
source: rotary.org