1. On February 21, 1895, the Idaho State Legislature passed a bill to establish the Idaho State Normal School, which later became the University of Idaho. The bill established a teacher's training school in Moscow, Idaho, with the aim of improving education in the state.

2. February 21, 1885, marked the beginning of a two-day blizzard that swept across Southern Idaho. The intense storm caused significant damage to crops and property, leading to a state of emergency being declared in several counties.

3. On February 21, 1980, Idaho Senator Frank Church announced his retirement from politics after serving for 24 years. Church was known for his work on environmental issues and was a vocal opponent of the Vietnam War.

4. February 21, 1933, saw the opening of the City of Rocks National Reserve in Southern Idaho. The park is known for its unique rock formations, which were formed around 28-30 million years ago by volcanic activity.

5. In 1918, Idaho Governor Moses Alexander signed a bill allowing women to vote in primary elections, making Idaho one of the first states to grant suffrage to women in any elections. February 21 marks an important milestone in Idaho's history of women's suffrage and equal rights.