1716
Banque Générale
Law founds a bank whose notes are payable in coin under stated rules. The Mississippi collapse is 1720.

In 1716 John Law founded the Banque Générale. The notes were a convenient claim on metal, not metal itself. The crown later takes a closer grip, and the bank is reorganized as the Banque Royale.
The share mania and the break belong to 1719 and 1720, not to this founding year.