Image: Sen. Carter Glass (D–Va.) and Rep. Henry B. Steagall (D–Ala.-3), the co-sponsors of the Glass–Steagall Act.In 1933, the U.S. Congress passed the Glass–Steagall Act mandating a separation between commercial banks, which take deposits and extend loans, and investment banks, which underwrite, issue, and distribute stocks, bonds, and other securities. Elizabeth Peek, TheHill and Fox News; in re: Stock market: best day since 1933