What year were Americans forced to sell their gold for 20.00 an ounce?

They forced them to sell it in 1932-1933. Failure to sell the gold resulted in fines and or jail time. Then they doubled the value of it to 35 dollars. This is how America takes control over our country. However FDR made it seem like he was taking us out of the great depression which he ended up doind. However now gold is 2 grand per ounce and fort knox has it all.