World History Maps Interactive Historical Atlas of the Civil War, detail page for:

Mississippi, State before Nov 6, 1860 - Jan 11, 1861
Mississippi, Seceded State Jan 11, 1861 - Mar 29, 1861
Mississippi, CS State Mar 29, 1861 - May 22, 1865
Mississippi, Occupied State May 22, 1865 - after Jun 25, 1865

John J. Pettus US/CS Governor, before Nov 6, 1860 - Nov 16, 1863

Mississippi election results: Douglas 3282 4.7%, Bell 25045 36.2%, Breckinridge 40768 59%, Nov 6, 1860

State convention met regarding secession, Jan 7, 1861
Mississippi seceded from the Union, Jan 9, 1861
US Dept. of Pennsylvania created Pennsylvania Delaware and parts of Maryland transferred from Dept. of Washington, Apr 27, 1861
CS Dept. of Number One created included southern Louisiana southern Mississippi and southern Alabama, May 27, 1861
CS Dept. Number Two created included areas adjacent to the Tennessee and Mississippi rivers, Jun 25, 1861
CS Dept. Number Two boundaries defined, Jul 4, 1861
CS Dept. Number Two expanded areas in Mississippi west of Central Railroad added, Sep 2, 1861
Area around Pascagoula Bay Mississippi transferred from CS Dept. Number One to Dept. of Alabama and West Florida, Dec 12, 1861

US Dept. of The Gulf created including coastal Louisiana Mississippi and Alabama, Feb 23, 1862
Advance on Corinth, Apr 29, 1862 - May 30, 1862
CS Trans Mississippi Dept. created Arkansas transferred from Dept. Number Two Dept. of Texas discontinued and absorbed Dept. of The Indian Territory discontinued and absorbed western Louisiana transferred from Dept. Number One eastern Louisiana and Missis, May 26, 1862
Corinth, US occupation, May 30, 1862
Iuka, engagement, Sep 19, 1862
CS Dept. of Mississippi and East Louisiana created Mississippi and eastern Louisiana transferred from Dept. Number Two, Oct 1, 1862
Corinth, battle, Oct 3, 1862 - Oct 4, 1862
US Dept. of The Tennessee created Western Kentucky Western Tennessee and Northern Mississippi included, Oct 16, 1862
Operations against Vicksburg, Oct 31, 1862 - Jan 10, 1863
Chickasaw Bayou, battle, Dec 26, 1862 - Dec 29, 1862

Vicksburg Campaign, Jan 10, 1863 - Jul 4, 1863
Grand Gulf, bombardment and passage of the batteries, Apr 29, 1863
Snyders Bluff, battle, Apr 29, 1863 - May 1, 1863
James Whitfield CS Acting Governor, Apr 29, 1863 - May 8, 1863
Port Gibson, battle, May 1, 1863
Raymond, battle, May 12, 1863
Jackson, evacuation, May 14, 1863
Champions Hill, battle, May 16, 1863
Big Black River Bridge, battle, May 17, 1863
Vicksburg, Siege, May 18, 1863 - Jul 4, 1863
Vicksburg, assault on, May 19, 1863
Vicksburg, assault on, May 22, 1863
Vicksburg, Surrender, Jul 4, 1863
Jacob Thompson CS Acting Governor, Nov 16, 1863 - Apr 7, 1864
Charles Clark CS Governor, Nov 16, 1863 - May 22, 1865

CS Dept. of Alabama and East Mississippi created CS Dept. of Mississippi and East Louisiana discontinued and absorbed Alabama transferred from Dept. of Tennessee, Jan 28, 1864
Meridian and Yazoo River Expeditions, Feb 3, 1864 - Mar 5, 1864
Meridian, US occupation, Feb 14, 1864 - Feb 20, 1864
Okolona, battle, Feb 22, 1864
Forrest in Mississippi and Tennessee, Mar 16, 1864 - Nov 5, 1864
Brices Cross Roads, battle, Jun 10, 1864
Tupelo, battle, Jul 14, 1864 - Jul 15, 1864

CS Dept. of Alabama and East Mississippi Surrendered, May 4, 1865
Louisiana Mississippi Alabama and Florida transferred from US Depts. Of the Cumberland South and Mississippi to Dept. of The Gulf, May 17, 1865
Mississippi CS Governor Clark removed, May 22, 1865
William L. Sharkey US Provisional Governor, Jun 13, 1865 - after Jun 25, 1865