When the FED is conducting open market operations, they are buying or selling *

It's important to understand that the Federal Reserve can buy or sell securities, including government securities like Treasury bonds. These buy-and-sell transactions are the “operations.” The term “open market” refers to the fact that the Fed doesn't buy securities directly from the U.S. Treasury

i looked it up that’s what it gave me

February 1848 is when it was added. if that's what you were asking