Why was Mardi Gras cancelled in 1988 and 1989?

Mardi Gras was canceled twice since it was first celebrated in a settlement called the Fort Louis de la Mobile (1703).

The first time it was stopped was in 1862 because of the Civil war, it started back up in 1872.

The second time in 1918 was because of World War 1, and the start of the Great Depression.