1. On April 28, 1825, the first treaty between the Menominee Nation and the United States was signed in Prairie du Chien, Wisconsin. The treaty ceded a large portion of Menominee land to the United States in exchange for annuity payments and other benefits.

2. The Wisconsin Central Railroad was incorporated on April 28, 1871. The railroad played a significant role in the development of northern Wisconsin, connecting logging camps and other industries to markets in the south.

3. In 1930, the Wisconsin Legislature declared April 28 to be Arbor Day in the state. Arbor Day is a holiday devoted to tree planting and conservation.

4. On April 28, 1967, Milwaukee Bucks owner Wes Pavalon announced that Lew Alcindor (later known as Kareem Abdul-Jabbar) would be the team's top draft pick. Alcindor went on to become one of the greatest players in NBA history, winning six championships and six MVP awards.

5. The 2019 National Football League draft began on April 28, with the Green Bay Packers selecting defensive end Rashan Gary and safety Darnell Savage in the first round. The draft, which was held in Nashville, Tennessee, attracted thousands of fans and generated millions of dollars in economic impact for the host city.