1. On March 4, 1863, Idaho Territory was created by an act of Congress. This act split the existing Washington, Dakota, and Nebraska territories to create Idaho, Montana, and Wyoming.

2. On March 4, 1895, Idaho became the fourth state to grant women the right to vote. This was more than 25 years before the 19th Amendment to the U.S. Constitution was ratified.

3. On March 4, 1909, President William Howard Taft signed a bill that established the Caribou National Forest in eastern Idaho. This forest covers over 1 million acres and is known for its scenic beauty and wide range of recreational opportunities.

4. On March 4, 1949, Schweitzer Mountain Resort opened for business near Sandpoint, Idaho. The resort is now one of the premier ski destinations in the Pacific Northwest, with over 2,900 acres of skiable terrain and a vibrant year-round community.

5. On March 4, 1976, Idaho's state capitol building was added to the National Register of Historic Places. The building, located in Boise, was completed in 1920 and is considered one of the finest examples of neoclassical architecture in the western United States.