1936 - November 12 – In California, the San Francisco–Oakland Bay Bridge opens to traffic.

On November 12, 1936, a significant milestone in engineering and transportation history was achieved with the opening of the San Francisco-Oakland Bay Bridge in California. This iconic bridge, spanning over 4 miles, connected San Francisco with the East Bay, specifically Oakland. It was a monumental feat of engineering, showcasing the ingenuity and progressiveness of the time.

The opening of the Bay Bridge marked a new era of connectivity and accessibility between San Francisco and its neighboring cities. Prior to its construction, crossing the bay often involved lengthy ferry rides, which were not only time-consuming but also limited in capacity and efficiency. The Bay Bridge revolutionized travel in the region, providing a vital link for commuters, tourists, and businesses alike.