1. The first passenger train arrived in Utah on October 5, 1869, marking a significant moment in the state's transportation history. The train traveled from the east coast to Utah via the newly completed Transcontinental Railroad.

2. On October 5, 1895, Utah's Alta ski resort was established, making it one of the oldest ski resorts in the United States. Alta is known for its powder snow and challenging terrain, making it a popular destination for skiers and snowboarders.

3. In 1946, a large earthquake struck the town of West Yellowstone, Montana, causing significant damage to the town and surrounding areas. The earthquake was felt as far away as Utah, where it caused minor tremors.

4. On October 5, 1955, the University of Utah became the first university in the world to be connected to the internet. The university's computer science department was tasked with developing the technology that would later become the world wide web.

5. In October 2002, Utah made headlines when nine members of the Polygamous Fundamentalist Church of Jesus Christ of Latter-Day Saints were arrested and charged with sexual abuse of minors. The case drew national attention to the controversial practices of the FLDS, which has a significant presence in Utah and other western states.