This Date in Baseball - Mariners clinch playoff spot for 1st time since 2001, longest drought in MLB

A “This Date in Baseball” recap highlights key moments spanning decades, including milestone records and playoff breakthroughs. It notes Doc White’s 4-0 shutout for the Chicago White Sox over the New York Yankees and several franchise pennant-clinching dates, such as the Boston Red Sox in 1915 and the St. Louis Cardinals in 1934. The list also covers major individual achievements: Babe Ruth’s 60th home run in 1927 and Jackie Robinson’s homer in 1951, which forced a playoff after Brooklyn beat Philadelphia 9-8. It includes historic broadcasting with the first televised World Series game in 1947 and references late-season comeback drama like the 2014 Royals’ wild-card extra-inning win over Oakland. The article continues beyond 2017 but is cut off mid-sentence.