In approximately which years was Old English spoken? In which years did the Confederate States exist?  Was any part of #2 within #1?
Old English
Old English is the earliest form of English during the middle ages. Modern English replaced old English during the seventeenth century. American English was created and spoken during the formation of the first US colonies.  The civil war started in 1861, and was a war between the northern states and southern states. 
Early form of English; Anglo-Saxon
Did the confederate states speak Old English before the Civil War?