By 1500 A.D., the Aztecs had used both their military strength as well as political ties to conquer almost all of the territory in and around their capital city. Their empire stretched from the Pacific Ocean in the west to the Atlantic Ocean in the east.
It is only with the heart that one can see rightly; what is essential is invisible to the eye.
Antoine De Saint-Exupery
he Egyptians were the first people known to have separated copper from its copper ore around 2000 B.C.