True, but the battle was fought after the war ended with the Treaty of Ghent, thus it had no impact on the outcome. The more significant and important campaign to the history of the US was Jackson’s defeat of the Creeks. It opened up the then Southwest to cotton production, thus the extension of slavery, an institution that was on its last legs along the Atlantic Coast. The economic viability of slavery, the surplus slave population, was a big problem for the southern states. Horseshoe Bend changed the whole situation, and gave slavery a second wind.
Ya, but......... If the battle had no impact on the outcome, then nothing after your first sentence would have been able to take place.
more from wiki (God forgive me): re Battle of New Orleans
A general ceasefire had already been declared by the Treaty of Ghent, signed on 24 December 1814, but as peace was not yet ratified in Washington as required by the treaty, the nations were still formally at war. The news of the treaty did not reach the combatants until February, several weeks after the battle.
Wrong. The Treaty of Ghent declared status quo ante -- everything the way it was before the war began. However, the Brits and the US had different interpretations of that as applied to Louisiana. Britain and its Spanish allies viewed the purchase of Louisiana from Napoleon as illegal, so the British intended to seize Louisiana and hold it for the Spanish.
IIRC, according to Robert Remini, the Spanish were preparing to send their officials to New Orleans to govern Louisiana in March 1815, when they received news of the US victory at New Orleans.