No one knows, but gold has been used in jewellery for at least 8,000 years.
It was in the first part of January, 1848, when the gold was discovered at Coloma, where I was then building a saw-mill. The contractor and builder of this mill was James W. Marshall, from New Jersey. In the fall of 1847, after the mill seat had been located, I sent up to this place Mr. P. L. Wimmer with his family, and a number of laborers, from the disbanded Mormon Battalion; and a little later I engaged Mr. Bennet from Oregon to assist Mr. Marshall in the mechanical labors of the mill. Mr. Wimmer had the team in charge, assisted by his young sons, to do the necessary teaming, and Mrs. Wimmer did the cooking for all hands.