Alternate History: France Sells New Orleans But Keeps Louisiana—Consequences

If France (1803) sold only New Orleans but retained the rest of Louisiana and granted Mississippi River access, American history would diverge sharply:

1. Stunted Western Economy: Farmers/merchants dependent on New Orleans port but subject to French tariffs, politics, revocation risk. No sovereign control.
2. Franco-American Tensions: Disputes over access terms, smuggling, border incidents—likely conflict.
3. Manifest Destiny Delayed: No vast territory to "fill"; expansion stalls at Mississippi. No Lewis & Clark (commissioned for Louisiana).
4. Spanish/British Opportunism: Spain holds Florida; Britain Canada. Both exploit U.S. weakness in Mississippi Valley.
5. Jefferson's Political Crisis: Louisiana Purchase was his triumph; failure weakens presidency, emboldens Federalists.
6. Slower Settlement: No land grants, no homesteading beyond river. Native nations retain territory longer.
7. Civil War Altered: No Louisiana Purchase → no Missouri Compromise (1820), no Kansas-Nebraska (1854), different slavery geography.

The 1803 Purchase ($15M for 828,000 sq mi) was the bargain of the millennium. Partial purchase would have been a strategic trap.