Connecticut ratified on June 25, 1866
New Hampshire ratified on July 6, 1866
Tennessee ratified on July 19, 1866
New Jersey ratified on September 11, 1866
Oregon ratified on September 19, 1866
Vermont ratified on October 30, 1866
Ohio ratified on January 4, 1867
New York ratified on January 10, 1867
Kansas ratified on January 11, 1867
Illinois ratified on January 15, 1867
West Virginia, Michigan, and Minnesota ratified on January 16, 1867
Maine ratified on January 19, 1867
Nevada ratified on January 22, 1867
Indiana ratified on January 23, 1867
Missouri ratified on January 25, 1867
Rhode Island and Wisconsin ratified on February 7, 1867
Pennsylvania ratified on February 12, 1867
Massachusetts ratified on March 20, 1867
Nebraska ratified on June 15, 1867
Iowa ratified on March 16, 1868
Arkansas ratified April 6, 1868
Florida ratified on June 9, 1868
North Carolina ratified on July 4, 1868
Louisiana and South Carolina ratified on July 9, 1868 and the amendment was adopted.
The fact that New Jersey and Ohio later voted to rescind ratification is irrelevant. The Constitution does not give states the power to change their mind on ratification. The reasoning should be clear - one or two states today could rescind their vote and the First or Second Amendments could be stricken from the Constitution. Regardless, 9 more states voted to ratify after South Carolina. The 14th Amendment was ratified, it's legal, and it's part of the Constitution.