
American history has frequently been one of fads and extremes, and the fifth decade of the nineteenth century gives us another fine example: the California Gold Rush. While Americans had been moving westward almost since they put foot on Plymouth Rock, on January 24, 1848, at the time gold was discovered at Sutter’s Mill, what we know today as California was a part of Alta California, a Mexican territory. San Francisco was tiny; only 200 people lived there in 1846.
That changed almost overnight. Despite the fact that there was at the time no straightforward or fast way to get to the West Coast from the East, a flood of Americans and immigrants set off by ship traveling either all the way around the tip of South America or down to Panama, overland, then up the coast via the Pacific Ocean. Others drove wagons west on the California Trail. The influx of 300,000 people from all around the world created a number of problems, and one of them was currency.