1. On July 22, 1976, the Teton Dam in eastern Idaho collapsed, causing a massive flood that killed 11 people and caused significant damage to farmland and property. The disaster had a lasting impact on the region's economy and ecology.

2. July 22, 1918, saw the dedication of the Idaho State Capitol Building in Boise. The building, designed in the neoclassical style by architect John E. Tourtellotte, remains a symbol of Idaho's government and history.

3. On July 22, 1977, the Sawtooth Avalanche, one of the deadliest avalanches in Idaho history, occurred in the Sawtooth Mountains near Stanley. Seven skiers were killed in the disaster, which prompted changes in avalanche safety protocols and procedures.

4. In 1864, on July 22, the Boise Basin was formally organized as Boise County. The county's mining industry was a significant contributor to the growth and development of Idaho in the late 19th century.

5. On July 22, 1936, television broadcasting began in Boise, with the first station, KIDO-TV, going on the air. The station later became KTVB, a prominent news and entertainment station that remains a part of the Idaho media landscape to this day.