Compagnie des mers du Sud
The Lord Treasurer Robert Harley established the South Sea Company in 1711. Nominally, this was a trading company, but its main activity was the funding of government debt. In 1720, a bill was passed making the South Sea Company responsible for the entire national debt. This led to a frenzy of interest in the company, whose shares reached ten times their original issue price. A liquidity problem and collapse followed. The company was responsible for at least part of the national debt until it was abolished in 1850.