https://youtu.be/MYSCCXXY2fE
https://youtu.be/W8oxrxByHcM
https://youtu.be/qitWyz3AR6U
https://m.youtube.com/watch?v=SDk0jFA1VUo
https://www.youtube.com/watch?v=wVqfXDIPh_Y
https://m.youtube.com/watch?v=kJMqjORaf2g
https://youtu.be/FOu87wiPu-k
1848- Gold is discovered in California.
https://youtu.be/hsx11Cg2AQM
https://youtu.be/w9ZGiY8GUsg