The Real Academia Española celebrated its 300th birthday almost a year ago, in August 13, 2013. It was established in 1713. Castilian Spanish has got to be the most accurate language on the planet, IMHO. There is a rule for everything. I consider Castilian the most current version of Latin.
BTW, I've just finished a (free) MOOC class through MiriadaX.net. This class was Castilian Spanish A2. It was 6 weeks long and hosted by the University of Salamanca. Check it out! https://www.miriadax.net/ (The symbol [o-o] on the button I used to place that link here is called an eslabón! [Impress your friends with that!])