The siege of Port Hudson, Louisiana, begins: After two failed frontal assaults, Major General Nathaniel P. Banks, commanding the compulsory Union Department of the Gulf (of Mexico) surrounds the last free city on the Mississippi River.
[added 4/8/2022]
Subsequent Events:
References:
Calvin D. Linton, ed. The Bicentennial Almanac: 200 Years of America, 1776-1976, (Nashville, Tennessee: Thomas Nelson, 1975), 176.
Siege of Port Hudson – Wikipedia, the free encyclopedia
en.wikipedia.org/wiki/Siege_of_Port_Hudson
Chronology Of The American Civil War
civilwarhome.com/timeline.htm