Portal:San Francisco Bay Area/Years/25
1990
- The Children's Discovery Museum of San Jose (pictured) opens
- Ron Dellums is re-elected to the 8th district of the United States Congress
- Michael Sweeney is elected mayor of Hayward
- The San Francisco 49ers win the Super Bowl for the fourth time
- Long time International Longshore and Warehouse Union president Harry Bridges dies in San Francisco