The blueprints for the Mayan calendar were very recently discovered and outline prophecies for many millenia to come, so there should no longer be worry for anyone about a prophetic end of the world in 2012. Even before these blueprints were dusted off, I often quoted the only prophet with a proven track record in our own time- Edgar Cacey. While Mr. Cacey was deeply religious and earnestly believed in a second coming of the Messiah, he had predictions for many hundreds of years into our future. The legend behind the crystal skulls is a vague one at best and several of the crystal skulls have been proven to be 20th Century forgeries. The Mitchell-Hedges skull has yet to be proven imperically as a modern-day hoax, but the convenient circumstances surrounding its discovery are a bit questionable. Fake or not, I think people should take care they don't assume that physical items denote truth in very old legends.