Establishing the first moment of something can be very difficult, as it turns out to fix its ending. But to understand each other, we could establish Monday October 19, 1987 as the beginning of continued support with liquidity injections of monetary policy to the capital markets.

In August of that same year, Allan Greenspan had become President of the United States Federal Reserve; a few weeks later there was a world stock market crisis followed by a drop in the Fed's intervention rates and a contribution