a bunch of men came from everywere to get some gold from the river and the first guy who discovered all the gold was James W. Marshall, at sutters mill in coloma CA.
All the people were going for the gold in coloma CA the word spread that there were billions of dollars just sitting there.
The California Gold Rush 1848–1855) began on January 24, 1848,
The gold rush was in many places but it started in the american river and in Coloma CA.
Because gold was worth so much money back in the day so everyone wanted money and to sell gold and make alot of money.