So, today is Tolkien's birthday (January 3rd, 1892).
You will often see it stated that he was born in South Africa, but this is not quite right. He was actually born in Bloemfontein ("Flower Foutain"), the capital of the Orange Free State, one of the Boer Republics. It makes for a good shibboleth when picking up a new book on JRRT whether the author says something like 'Tolkien was born in South Africa' instead of 'born in south Africa'. The latter is the more accurate; the former shows he or she has a more casual knowledge of the details of Tolkien's life.
As years go by, and Tolkien becomes more and more mainstream, and the number of books about Tolkien by authors are not themselves Tolkien experts increase, we'll be seeing a lot more stuff like that.
--John R
P.S.: Here's an old button I've proudly worn at quite a few conventions over the years.