The answer to the question is d
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>
The first major domestic crisis of the US government under the Constitution resulted from the federal government exercising its new right to tax the states in order to bring in more revenue to pay down the war debt.
it was Baron von Steuben.
<span>Agriculture and domestication of animals. Both allowed for an increase in food while causing people to remain in one location. That allowed specialization of tasks and created the need for record keeping and government.</span>
