Yes, that's why I recommended reading it later. The Appendices were put together because of the flood of letters Tolkien and his publisher received, especially in the 60s when the success of LotR became a global phenomenon, that asked for more information about all the tantalising glimpses into the past that occur in the book. There are now much better sources of information available if you're interested in the same things as those letter-writers. If you only wanted to read LotR and not immerse yourself in Middle-earth any further, you can safely stop now.
Yes, that's why I recommended reading it later. The Appendices were put together because of the flood of letters Tolkien and his publisher received, especially in the 60s when the success of LotR became a global phenomenon, that asked for more information about all the tantalising glimpses into the past that occur in the book. There are now much better sources of information available if you're interested in the same things as those letter-writers. If you only wanted to read LotR and not immerse yourself in Middle-earth any further, you can safely stop now.