On this day last year, it was already clear that it was not going to be just any Monday in September. Following a weekend of rumours and reports, Lehman Brothers filed for Chapter 11 bankruptcy protection just after 0530 London time.
Within a few minutes, the official announcement came from Bank of America that it was buying Merrill Lynch to prevent it going under too. BBC business editor Robert Peston described it as the most extraordinary 24 hours for Wall Street since the late 1920s