1. On June 9, 1849, the first steamship, the Julia Dean, arrived in Idaho. The boat was captained by Martin Scott and arrived at Fort Walla Walla on the Snake River. This marked the beginning of a new era of transportation and commerce in Idaho.

2. In 1888, the Idaho State Penitentiary opened its doors for the first time on June 9. The prison housed an average of 600 inmates and was in operation until 1973. Today, visitors can tour the historic prison and learn about its fascinating history.

3. On June 9, 1931, Idaho became the fifth state to allow women to serve on juries. This was a major milestone in women's rights in Idaho and helped pave the way for greater equality in the state and across the country.

4. The Mackay Dam, one of the largest concrete dams in the world, was completed on June 9, 1953. The dam, which is located on the Snake River near Mackay, Idaho, is 1,900 feet long and 205 feet high. It provides power to the surrounding area and helps control flooding.

5. On June 9, 1972, a major earthquake struck southern Idaho. The earthquake had a magnitude of 6.1 and caused extensive damage to several towns, including Challis and Mackay. Fortunately, no fatalities were reported, but the earthquake serves as a reminder of the power of nature and the need for preparedness.