I think I found another one, and it looks like it swapped twice: http://chronicle.nytlabs.com/?keyword=Aesthetic.esthetic Edit: Another: http://chronicle.nytlabs.com/?keyword=Archaeology.archeology A very early switch: http://chronicle.nytlabs.com/?keyword=Toward.towards Another: http://chronicle.nytlabs.com/?keyword=catalogue.catalog And another: http://chronicle.nytlabs.com/?keyword=centre.center A weaker one: http…
"Muslim" replaced "moslem" in about 1988: http://chronicle.nytlabs.com/?keyword=moslem.muslim [Apparently for good reason: http://hnn.us/article/524 ]
"Peking" was replaced by "Peiping" in 1930, but it was back to "Peking" in 1962, and then finally changed to "Beijing" in 1985: http://chronicle.nytlabs.com/?keyword=peking.beijing.peiping