1. On July 28, 1914, South Dakota Governor Frank Byrne issued a proclamation calling for peace in the midst of World War I. He urged all citizens to remain calm and avoid any actions or statements that could provoke conflict.

2. The first ever South Dakota State Fair was held on July 28, 1885, in Huron. The fair aimed to showcase the best agricultural products of the state and has since become a beloved annual event for locals and tourists alike.

3. In 1932, the infamous "battle of the Little Bighorn" took place on July 28. Also known as Custer's Last Stand, this battle was fought between the U.S. Army and a coalition of Native American tribes. It resulted in a massive defeat for the 7th Cavalry Regiment and the death of General George Armstrong Custer.

4. On July 28, 1965, President Lyndon B. Johnson signed the Federal Aid Highway Act. This legislation created a network of interstate highways across the country, including several major routes that pass through South Dakota.

5. July 28 is also the date of several notable births in South Dakota history. Former Governor Walter Dale Miller was born on this day in 1935, as was legendary college football coach Lou Holtz in 1937. Actress Cheryl Ladd, best known for her role on "Charlie's Angels," was born in Huron on July 28, 1951.