The. Olmeca: One of the main contributions of this culture was the development of writing. This is because some scholars believe that this was the first civilization in the western hemisphere. In addition, this culture was responsible for inventing the number zero and inventing the Mesoamerican calendar. This was one of the first Mesoamerican civilizations and many of its customs influenced the cultures that later emerged as artificial bleeding.
B. Maia: Mayan culture was very important in the development of mathematics, topography, in the manipulation of fabrics used to make works of art. In addition, this culture was very influential in architecture, elaborating techniques and concepts that have been studied until today.
c. Toltec and Aztec: The main contribution of these cultures was the development of extremely productive agricultural techniques and systems that are still used today and promote a food supply. They were also the developers of an organized social and political organization.
d. Hohokam: They were responsible for the development of the commercial organization, creating large centers and promoting trade inside and outside the territory, in addition to allowing the creation of channels around large cities.
and. Anasazi: They had a great contribution in architecture, mainly in relation to the construction of family houses. They also developed productive and efficient agricultural systems, but their contribution is more evident in the arts and crafts.
<span>a fear of the spreading influence of the Soviet Union</span>
It was "John Marshall" who established the role of the Supreme Court in judicial review, since he believed that this was a necessary measure in order to ensure a proper system of "checks and balances" in the federal government.
Nations saw riches, extra labor, land, and an opportunity to show they had more "power" over the other nations.
