From PghBaldy link:
“In other words, the amendment would forever guarantee the right of the Southern people to own slaves.”
“By tacitly supporting Corwin's amendment, Lincoln hoped to convince the South that he would not move to abolish slavery and, at the minimum, keep the border states of Maryland, Virginia, Tennessee, Kentucky, and North Carolina from seceding.”
“Corwin's amendment, as it was then called, was one of three attempts to resolve the secession crisis between Lincoln's election in November 1860 and the firing on Fort Sumter in April 1861.”
And from DiogenesLamp link:
“The Corwin Amendment was the last-ditch compromise effort to protect slavery where it existed by enshrining it in the Constitution.”
The discerning reader will no doubt recognize which link is from lost causer mythology.