Question

which U.S. president formally announced that gold had been discovered in California.​

Answer 1

Answer:

President Polk

Explanation:

On This Day: President Polk Sparks the California Gold Rush. On Dec. 5, 1848, President James K. Polk confirmed in his State of the Union address that large quantities of gold had been discovered in California

Answer 2

Answer:

James K. Polk

Explanation: