I am studying for a test and the review sheet has this stumper. What events led to the ratification of SC's constitution of 1868?
Right off, I would say the end of the Civil War and the passing of the 13th and 14th Amendments to the US Constitution: http://en.wikipedia.org/wiki/List_of_amendments_to_the_United_States_Constitution
You may find more in these search results that will help, too:
http://www.google.com/webhp?sourceid=chrome-instant&ion=1&espv=2&ie=UTF-8#q=events+led+to+the+ratification+of+SC's+constitution+of+1868&*