1 janv. 1861 - By January 1961, 10 other states had seceded from the union
Mississippi on January 9th, 1861
Florida on January 10th, 1861
Alabama on January 11th, 1861
Georgia on Janaury 19th, 1861
Louisiana on January 26th, 1861
Texas on February 1st, 1861
Virginia on April 17th, 1861
Arkansas on May 6th, 1861
North Carolina on May 20th, 1861
Tennessee on June 8th, 1861
https://civilwargazette.wordpress.com/2006/12/12/order-of-secession-of-the-southern-states/
http://www.vaiden.net/confstat.html