What resulted from the discovery of gold at sutter's mill in california in 1848

When James W. Marshall found gold in Sutter´s Mill in 1848, the immediate result was The California Gold Rush from 1848 to 1855. The news spread around very fast and more than 300,000 people from the United States and other countries suddenly arrived in California. About half the people came by sea and the other half by land.  Thousands people came from Latin America, Europe, Australia and China.  

There were many changes brought by the discovery of gold in California. The economy was revived with gold now being added to the money of the economy. With so many people now coming to live in an area which had a  small population the city was able to apply for statehood certification.

Unfortunately, not all the changes were good and indigenous people suffered a lot when they were displaced or push away from their lands by the Gold seekers. At the same time native Californians also suffered from sudden decline of their populations due to the ill effects of diseases, starvation and genocide.    

a. favoring native born americans over immigrants.