In what year did New Orleans burn down?

Answer 1

1788, destroyed 856 buildings all starting from a barn, the myth is the cow kicked over the oil lantern

Another answer:

There have been two "great fires" in New Orleans history: the one mentioned above, and another in 1794 that destroyed 212 structures. The "cow myth," however, originated with the "Great Chicago Fire" of 1871.

Answer 2

The Great New Orleans Fire of 1788 occurred on March 21, 1788, which destroyed much of the city. The fire lasted for nearly three days, causing extensive damage to houses and buildings in the city.