What world-wide community service organization was founded on February 23, 1905?

The first Rotary Club was formed when attorney Paul P. Harris called together a meeting of three business acquaintances in downtown Chicago, United States, at Harris's friend Gustave Loehr's office in the Unity Building on Dearborn Street on February 23, 1905. In addition to Harris and Loehr (a mining engineer and freemason), Silvester Schiele (a coal merchant), and Hiram E. Shorey (a tailor) were the other two who attended this first meeting. The members chose the name Rotary because initially they rotated subsequent weekly club meetings to each other's offices, although within a year, the Chicago club became so large it became necessary to adopt the now-common practice of a regular meeting place.

Rotary International is an international service organization whose stated purpose is to bring together business and professional leaders in order to provide humanitarian services, encourage high ethical standards in all vocations, and to advance goodwill and peace around the world. It is a non-political and non-sectarian organization open to all people regardless of race, color, creed, religion, gender, or political preference. There are 34,282 member clubs worldwide, and 1.2 million individuals, known as Rotarians, have joined.