Click the link to see the history of the Treasury yield curve since 1990 in 2.5 minutes https://dms.licdn.com/playback/C560...t=DN0bsGAdvM1QtzZkpkEqk6xAD8FaUfaXd-A9ESZybUQ
https://stockcharts.com/freecharts/yieldcurve.php Stockcharts has similar but much better since it links yield curve and SPX price. Just click animate