05/31/2026
1868: First Memorial Day parade held in Ironton, Ohio.
1879: Madison Square Garden opens in New York, named after 4th President James Madison.
1885: Dr. John Harvey Kellogg of Battle Creek, Michigan, files a patent for "flaked cereal, and process of making same"; controversially excluding his younger brother, Will Keith Kellogg.
1893: Remains of Jefferson Davis moved from New Orleans and re-interred at Hollywood Cemetery in Richmond, Virginia, per his widow's request.
1909: National Conference on the Negro holds its first meeting in United Charities Building, New York; earlier form of the NAACP.
1921: A large-scale race riot breaks out in Tulsa, Oklahoma, later described as the worst incident of racial violence in American history; around 150-300 African Americans killed.