1. In 1914, the Salt Lake City Public Library was officially opened to the public on January 15. It was one of the first libraries in the United States to have open stacks, allowing patrons to browse and choose their own books.

2. On January 15, 1920, Utah became the 36th state to ratify the 19th Amendment to the United States Constitution, which gave women the right to vote. Utah was one of the first states in the West to grant women suffrage, doing so in 1870.

3. The University of Utah's Rice-Eccles Stadium hosted the opening and closing ceremonies of the 2002 Winter Olympics on January 15 of that year. This marked the first time in Olympic history that the same stadium was used for both the opening and closing ceremonies.

4. On January 15, 1863, the United States Army launched an attack on Indian tribes in southeastern Utah. The conflict, known as the Bear River Massacre, resulted in the deaths of hundreds of Shoshone men, women, and children.

5. The Cache Valley Daily newspaper was first published on January 15, 2007. The paper, based in Logan, Utah, covers news and events across Cache Valley, a region in northern Utah and southern Idaho.