brought economic recovery to a halt. The largest one-day percentage gain in the index happened in the depths of the 1930s bear market on March 15, 1933, when the Dow gained 15.34% to close at 62.10. However, as a whole throughout the Great Depression, the Dow posted some of its worst performances, for a negative return during most of the 1930s for new and old stock market investors. For the decade, the Dow Jones average was down from 248.48 at the beginning of 1930, to a stable level of 150.24 at the end of 1939, a loss of about 40%. 1940s Post-war reconstruction during the 1940s, along with renewed optimism of peace and prosperity, brought about a 33% surge in the Dow from 150.24 to 200.13. The strength in the Dow occurred despite the Recession of 1949 and various global conflicts. 1950s During the 1950s, the Korean War and the Cold War did not stop the Dow's climb higher. A nearly 240% increase in the average from 200.13 to 679.36 ensued over the course of that decade. 1960s The Dow began to stall during the 1960s as the markets trudged through the Kennedy Slide of 1962, but still managed a respectable 18% gain from 679.36 to 800.36. 1970s The 1970s marked a time of economic uncertainty and troubled relations between the U.S. and certain Middle-Eastern countries. The 1970s energy crisis was a prelude to a disastrous economic climate along with stagflation, the combination of high unemployment and high inflation. However, on November 14, 1972, the average closed at 1,003.16, above the 1,000 mark for the first time, during a brief relief rally in the midst of a lengthy bear market. Between January 1973 and December 1974, the average lost 48% of its value in what became known as the 1973–1974 stock market crash, closing at 577.60 on December 4, 1974. In 1976, the index reached 1,000 several times and it closed the year at 1,004.75. Although the Vietnam War ended in 1975, new tensions arose towards Iran surrounding the Iranian Revolution in 1979. Performance-wise for the 1970s, the index remained virtually flat, rising 4.8% from 800.36 to 838.74. 1980s The 1980s began with the early 1980s recession. In early 1981, the index broke above 1,000 several times, but then retreated. After closing above 2,000 in January 1987, the largest one-day percentage drop occurred on Black Monday, October 19, 1987, when