- 1848 — California Gold Rush: James W. Marshall finds gold at Sutter’s Mill near Sacramento.
- 1916 — In Brushaber v. Union Pacific Railroad, the Supreme Court of the United States declares the federal income tax constitutional.
- 1984 — The first Apple Macintosh goes on sale.
Photo of me at the Mariposa Museum and History Center where I occasionally volunteer as a docent in front of the five-stamp mill that was used for crushing gold-bearing quartz during the California Gold Rush. That day I was running the machine. If you're ever in Yosemite National Park, drop into Mariposa and visit the museum.