As an AI language model, here are five interesting facts about December 16 in Utah History:

1. On December 16, 1850, the territorial legislature of Utah passed an act allowing women to vote in local and school board elections. Utah became the first territory to grant women voting rights, almost 70 years before the passage of the 19th Amendment to the U.S. Constitution.

2. The day also marks the anniversary of the dedication of the iconic Salt Lake City Temple of The Church of Jesus Christ of Latter-day Saints. Construction on the temple began in 1853 and was completed 40 years later in 1893. The temple is an important religious and cultural landmark in Utah.

3. December 16, 1950, also saw the opening of the first ski resort in Utah - Alta Ski Area. Alta is renowned for its deep powder snow, steep terrain, and breathtaking views. Today, it is one of the most popular ski destinations in North America.

4. In 1988, on December 16, Elizabeth Smart was born in Salt Lake City, Utah. She gained national attention in 2002 when she was kidnapped from her home at the age of 14 and held captive for nine months before being rescued. Smart has become an advocate for child safety and has written several books on her experience.

5. On December 16, 2016, Utah was hit by a strong 5.8 magnitude earthquake that shook buildings from Salt Lake City to Logan. The quake damaged several historic buildings in downtown Salt Lake City, including the iconic LDS Tabernacle, which was later deemed beyond repair and replaced with a new structure. The earthquake was one of the strongest to hit Utah in recent memory.