John Law’s Mississippi Bubble of speculation began to inflate itself on September 26, 1717, when Law’s Company of the West made ready to colonize Louisiana. Yet Law in Paris already knew that a sandbar had blocked up the one seaport of Louisiana that he thought suitable for receiving his transatlantic vessels. Five years later the bubble persisted only in memory, the bubble-maker lingered in exile and necessity persuaded light-draft French shipping to enter the Mississippi river. In the course of those five years the Company of the West had searched unavailingly for another deep, suitable and almost necessary port, and French Louisiana for that purpose had made unavailing war on Spanish Pensacola.
"The Contest for Pensacola Bay and other Gulf Ports, 1698-1722, Part I,"
Florida Historical Quarterly: Vol. 24
, Article 3.
Available at: https://stars.library.ucf.edu/fhq/vol24/iss3/3