The last time this happened

Ok, here we go. It is now all but certain that 2024 will see the first rematch between the same two presidential candidates since... 1956. How long ago was that? Well, in 1956 cars had tail fins, young girls were running around in poodle skirts, a hamburger cost 15 cents, and it was the last time the New York Times endorsed a Republican for president.  

(The last rematch before that was back in 1892.)