This is partly due to the fact that it requires a shorter duration of schooling and it is rewarding as far as finances go. While the length of schooling may be shorter than many other medical professions, there are still requirements that you will need to fulfill in order to become an ultrasound technician.
The Maya civilization developed in an area that encompasses southeastern Mexico, all of Guatemala and Belize, and the western portions of Honduras and El Salvador.
Many people believe that the ancestors of the Mayans crossed the Bering Strait at least 20,000 years ago. They were nomadic hunter-gatherers. Evidence of settled habitation in Mexico is found in the Archaic period 5000-1500 BC - corn cultivation, basic pottery and stone tools.