1. In 1910, the Boy Scouts of America were incorporated in Washington, D.C. The organization was founded two years earlier in England by Robert Baden-Powell and quickly gained popularity in the United States.

2. On March 10, 1933, the Long Beach earthquake struck the Pacific Northwest. Although the epicenter was in California, the earthquake caused damage and widespread panic in the Seattle area. Some buildings were damaged, but there were no fatalities.

3. In 1950, an underground explosion at the Centralia coal mine in Washington killed 5 workers. The tragedy was caused by the ignition of accumulated coal dust and led to a push for greater safety regulations in the mining industry.

4. On March 10, 1987, the Exxon Valdez oil spill occurred in Alaska, causing one of the worst environmental disasters in U.S. history. The tanker ran aground and spilled 11 million gallons of crude oil into Prince William Sound, devastating local wildlife and communities.

5. In 2014, Seattle Seahawks player Richard Sherman signed a four-year contract extension worth $57.4 million, making him one of the highest-paid cornerbacks in the NFL. The deal was announced on March 10 and helped cement the team's dominant defense in the years to come.