Colonial history of the United States Lower Louisiana. This vast tract was first settled at Mobile and Biloxi around 1700, and continued to grow when 7,000 French immigrants founded New Orleans in 1718. Settlement proceeded very slowly; New Orleans became an important port as the gateway to the Mississippi River, but there was little other economic development because the city lacked a prosperous hinterland. In 1763, Louisiana was ceded to Spain around New Orleans and west of the Mississippi River. In the 1780s, the western border of the newly independent United States stretched to the Mississippi River. The United States reached an agreement with Spain for
99th Infantry Regiment (France, 1757–1803) It was sent back to Italy in 1798, fighting in 1799 at the Trebbia, Bassignana, , and and in 1800 in the Var campaign and the crossing of the Mincio. In 1803 the unit was amalgamated with the 62nd Line Infantry Regiment. 99th Infantry Regiment (France, 1757–1803) The 99th Infantry Regiment (French - "99e régiment d'infanterie" or "99e RI") was an infantry regiment of the French Army. It was formed in 1791 by renaming the Royal Deux-Ponts Regiment and fought in the French Revolutionary Wars before being merged into another unit in 1803. A new and unrelated 99th Infantry Regiment