Historians describe these finds as follows: In 1850, hundreds of migrant ships arrived in San Francisco's harbor, fueled by the gold rush. But many of these ships were not needed after that and were simply sunk. And filled up for fidelity, would you like to add?
The current financial center was once a gulf. Now there are buildings on this site, a metro has been laid. Every day, thousands of passengers on San Francisco's underground subway lines pass through the hull of a 19th century ship without knowing it.
Likewise, thousands of pedestrians walk on top of dozens of old ships buried under the streets of the city's financial district. Beneath the streets of San Francisco's financial district lie the remains of dozens of sailing ships that once brought people to San Francisco.
But, according to scientists, at some point, people decided that they no longer needed ships and filled them up in a place with the bay.