1. On April 22, 1869, Brigham Young, the second president of The Church of Jesus Christ of Latter-day Saints, passed away at his home in Salt Lake City. Young played a significant role in the settlement of Utah, organizing the migration of thousands of Mormon pioneers to the region.

2. In 1952, the University of Utah unveiled the first artificial heart-lung machine. Developed by Dr. Willem Kolff, the machine was the first of its kind to successfully perform an open-heart surgery.

3. The iconic Hogle Zoo in Salt Lake City officially opened its doors on April 22, 1931. The zoo is notable for its extensive collection of rare and endangered animals, including African elephants, polar bears, and Siberian tigers.

4. On April 22, 2013, the Salt Lake City Council passed a resolution declaring the city's commitment to reducing its carbon footprint and promoting sustainable practices. The resolution was part of a larger effort to address climate change and energy efficiency in the region.

5. On April 22, 1865, the Union Pacific Railroad officially completed its transcontinental route, connecting the eastern and western coasts of the United States for the first time. The railroad played a significant role in the development of Utah and helped to facilitate economic growth and expansion throughout the region.