How did California change as a result of the gold rush?

After gold was discovered in California. News of the discovery soon spread, sending people to California from the rest of the United States and abroad. These early gold-seekers, called "forty-miners," traveled to California by sailing boat and in covered wagons across the continent ... San Francisco grew from a small settlement to a boom town, and roads, churches, schools and other towns were built throughout California. A system of laws and a government were created.