1. Statehood for Washington: On March 1, 1871, a bill was enacted which granted statehood to Washington Territory. The bill was signed by President Ulysses S. Grant, officially making Washington the 42nd state in the United States.

2. Founding of Seattle: On March 1, 1869, a group of pioneers led by Arthur A. Denny landed at Alki Point in what is now West Seattle. They established a settlement which they named "New York Alki" but later moved across Elliott Bay to present-day Seattle, officially founding the city.

3. Birth of Jimi Hendrix: On March 1, 1942, legendary musician and Seattle native Jimi Hendrix was born. Hendrix is widely regarded as one of the greatest guitarists in music history, and his music continues to influence musicians today.

4. Washington State Ferries Established: On March 1, 1951, the Washington State Ferries system was established by the state legislature. Today, it is the largest ferry system in the United States and operates 10 routes serving 20 terminals throughout Puget Sound.

5. Mount St. Helens Eruption: On March 1, 1980, a series of small earthquakes began to occur beneath Mount St. Helens in southwestern Washington. This eventually led to a massive eruption on May 18, 1980, which killed 57 people and caused extensive damage to surrounding areas. The eruption continues to be a significant event in Washington's history.