Nixon Ends Convertibility of US Dollars to Gold and Announces Wage/Price Controls | Federal Reserve History
https://www.federalreservehistory.org/essays/gold_convertibility_ends
Opinion | M.M.T. Shows the Trillion-Dollar U.S. Deficits Are OK - The New York Times
https://www.nytimes.com/2020/06/09/opinion/us-deficit-coronavirus.html