By 900 A.D., the Mayan culture began to decline. It is not entirely clear as to why, however, many historians believe that war broke out between different members of royal families. This civil war made farming difficult, and as a result, many people died from hunger and disease. By the late 900s A.D., almost all signs of this once great civilization were gone.
A rock pile ceases to be a rock pile the moment a single man contemplates it, bearing within him the image of a cathedral
Antoine De Saint-Exupery
Until 1863, postal service in the United States was free.