1. The Great Salt Lake Flood: On April 18, 1983, the Great Salt Lake experienced a major flood due to heavy rainfall and snowmelt. The lake rose by nearly 4 feet in just 24 hours, causing widespread damage to local businesses and homes.

2. The First Mormon Pioneer: On April 18, 1847, the first Mormon Pioneer, Parley P. Pratt, entered the Salt Lake Valley. This event marked the beginning of the famous Mormon Pioneer Trek, which saw thousands of Mormons migrate to Utah and settle in the Salt Lake Valley.

3. Utah’s First Woman Mayor: On April 18, 1912, Lalla Burdette became the first woman to be elected mayor of Kanab, Utah. She served for two terms, during which she was known for her advocacy of temperance and her efforts to improve the town’s infrastructure.

4. The Bingham Canyon Mine Landslide: On April 18, 2013, the Bingham Canyon Mine, one of the world’s largest copper mines, experienced a massive landslide that caused millions of dollars in damage. The slide was caused by a series of small earthquakes and resulted in the loss of thousands of tons of ore.

5. The First Utah Jazz Playoff Win: On April 18, 1984, the Utah Jazz won their first ever playoff game, beating the Denver Nuggets 122-111. The Jazz went on to win the series, marking the beginning of the team’s rise to prominence in the NBA.