Answer:
Here u go i had to write an essay on Louisiana in 5th grade and this is from the website I used ;)
January 26, 1861, the delegates to Louisiana’s secession convention meeting in Baton Rouge voted 113 to 17 to secede from the Union. Immediately thereafter, convention president Alexandre Mouton proclaimed the connection between Louisiana and the United States to be dissolved, and in a symbolic demonstration of this change in status, the delegates lowered the American flag in the chamber and replaced it with a flag depicting a pelican feeding her young (the image on the state seal). Louisiana kept this independent status until March 21, 1861, when it transferred its allegiance to the Confederate States of America.