Here is the full speech. The part I'm referring to specifically is as follows:
“If you ask me to name the proudest distinction of Americans, I would choose–because it contains all the others–the fact that they were the people who created the phrase ‘to make money.’ No other language or nation had ever used these words before; men had always thought of wealth as a static quantity–to be seized, begged, inherited, shared, looted or obtained as a favor. Americans were the first to understand that wealth has to be created. The words ‘to make money’ hold the essence of human morality. "
P.S. I'm glad this is a forum for me to ask this question without worrying about polarizing quality that's inherent in it. Thanks everyone.
It is objectively untrue.
The earliest attestation I can find of make money in the sense Rand intends is from The Stonor Letters and Papers, in a letter from Thomas Pratt to Thomas Stonor asking for monetary assistance of 20 shillings:
Full text of the letter can be found at archive.org. The letter is believed to have been written some time around 1470 CE, well before the existence of the United States.