The building of temples and great cities without modern machinery, using astronomy to predict astrological cycles and plant crops and using their language to communicate and measure time are some of the Mayans most notable achievements.<span> During a 600-year period of time, which was from 300 A.D. until 900 A.D., the Mayans made many great achievements in science, communications, engineering and agriculture.</span>
I would say a diamond border
It's dusty and windy and hot
The trade route proved to be impractical because the route was so risky and there was a great distance to travel. The rulers of the Native nations met them freely. The rulers of the Native nations were captured by treachery.