1. On February 28, 1850, Salt Lake City was declared the territorial capital of Utah by the United States Congress.

2. The first Utah Territorial Legislature met on February 28, 1851, and established laws related to education, taxes, and the formation of counties.

3. The Utah War, a conflict between the United States government and the Mormon settlers in Utah, ended on February 28, 1858, with the peaceful resolution known as the "Mountain Meadows Massacre" in Southern Utah.

4. On February 28, 1925, the first airplane to land in St. George, Utah, arrived at the airport in Bloomington, marking the beginning of commercial flights in the area.

5. The Sundance Film Festival, one of the largest independent film festivals in the world, was founded in Salt Lake City on February 28, 1978, by actor and director Robert Redford, who also established the Sundance Institute to support independent filmmaking.