Hey Jasmine812!
The Incas used khipu, the system of recording numbers by tying knots on strings! The numbers were indicated by knot type and position on the cord.
I hope this helps!
Answer:
<h3>The proposed 26th Amendment passed the House and Senate in the spring of 1971 and was ratified by the states on July 1, 1971.</h3>
Thomas Jefferson
James Madiso..............
Monks Mound is the largest prehistoric structure in the Americas and the largest pyramid north of Mesoamerica. It covers 16 acres with 4 platforms with ceremonial structure at the top. This makes it approximately the same size at its base as the Great Pyramid of Giza (13.1 acres / 5.3 hectares). Its base circumference is bigger than the Pyramid of the Sun at Teotihuacan. As a platform mound, the earthwork supported a wooden structure on the summit. It’s believed to have been a temple or chief’s residence. Since Mississippian society revolved around the mound network, archaeologists believe that the central, and largest mound would have belonged to a societal leader.
