1. In 1847, Brigham Young and other pioneer leaders arrived in the Salt Lake Valley, marking the end of a long journey for the Mormon pioneers and the beginning of settlement in Utah.

2. In 1867, the first railroad line from the east reached Utah with the completion of the Union Pacific Railroad line, connecting Utah to the rest of the country and facilitating growth and development in the state.

3. In 1921, the Buckland Mine explosion in Huntington killed 28 people and remains one of the deadliest mining disasters in Utah history.

4. In 1951, Utah became the 38th state to ratify the Twenty-Second Amendment to the United States Constitution, which limits the President of the United States to two terms in office.

5. In 2002, the Winter Olympics were held in Salt Lake City, bringing international attention and excitement to Utah and showcasing the state's natural beauty, hospitality, and athleticism.