PLEASE HELP!!!

Anyone contemplating stock market investing is likely to shudder at least a little bit at the markets penchant for taking a tumble now and again

Task: Write a brief informational report that contains a chart of one of the major stock market indices (such as the Dow Jones Industrial Average or the S&P 500) over the past 20 years. Pick out four significant drops in the index during this time period and investigate economic or political events that occured immediately before or during these declines. Briefly describe the events and their likely effect on the stock market.