1. On March 15, 1870, the Utah Territory signed a bill granting women the right to vote. This made Utah the first US state or territory to give women the right to vote, 50 years before the 19th Amendment was ratified.

2. On March 15, 1894, the Salt Lake Temple of The Church of Jesus Christ of Latter-day Saints was dedicated. The temple took 40 years to build and is one of the most recognizable buildings in Utah.

3. On March 15, 1916, the famous Mexican revolutionary Pancho Villa and his men raided the town of Columbus, New Mexico, killing 18 Americans. Governor William Spry of Utah sent the Utah National Guard to protect the US-Mexico border in response to the attack.

4. On March 15, 1968, the University of Utah made history by hosting the first-ever student protest against the Vietnam War. Over 1,000 students marched to the state Capitol building in Salt Lake City to voice their opposition to the conflict.

5. On March 15, 2018, Utah passed a bill legalizing medical marijuana. The bill, known as the Utah Medical Cannabis Act, allows patients with certain qualifying conditions to use medicinal marijuana products under the supervision of a doctor.