June 24

Born in 1867, Rathenau inherited and transformed his family's industrial enterprise into one of Germany's leading electrical companies. As a key figure in the Weimar Republic, he negotiated the Treaty of Rapallo with Soviet Russia to revive his nation's postwar economy. Appointed Foreign Minister in February 1922, he advocated for reconciliation with former enemies. His progressive ideas and Jewish heritage made him a target of nationalist extremists. Rathenau was assassinated in Berlin on June 24, 1922, shocking the nation. His death underscored the volatile politics of the era and solidified his legacy as a symbol of intellectual courage.

Otto Mears was born in Russia in 1840 and emigrated to the United States at age 18. He earned the nickname 'Pathfinder of the San Juans' by constructing narrow-gauge railways that opened remote mining regions in Colorado. His innovative toll roads and bridges facilitated commerce in the rugged Rocky Mountains. A shrewd businessman, he also invested in banking and mining ventures, amassing significant wealth. Mears's engineering feats transformed the economic landscape of the American West. He died in 1931, remembered as a pioneering figure in frontier infrastructure development.

Clarence S. Campbell was a Canadian lawyer and sports executive, best remembered as President of the National Hockey League (NHL) from 1946 to 1977. Born in 1905, he guided the league through periods of expansion and helped establish the NHL's modern structure. Under his leadership, the NHL added six new teams in 1967, doubling its size and popularizing ice hockey in North America. Campbell was known for his firm decision-making, including handling on-ice controversies and enforcing league policies. After retiring in 1977, he continued to shape the sport as commissioner emeritus and remained active in hockey affairs. The NHL's Campbell Conference was named in his honor, reflecting his lasting influence on professional hockey. He passed away in 1984, leaving a legacy of growth and stability for the sport.