Bogleheads:Anniversaries/March 23

March 23:
 * 1720 - The South Sea Bill, granting virtual monopoly powers to the South Sea Co., passes in the British House of Commons after six hours of fierce debate, during which the price of South Sea shares fluctuates from 270 to 400.
 * 1987 – The Standard & Poors 500 stock index closes above 300 for the first time, less than a year-and-a-half after breaking the 200 barrier. The index finishes the day at 301.16.