Answer: b
Explanation:1940s i am not sure this is correct but that's my guess
Answer:
<h2>B. Cahokia</h2>
Explanation:
Cahokia was a pre-columbian Native American city across the Mississippi River. It existed in 1050-1350. The Cahokia mound is the site where this city was located, this park is in western Illinois. It covers almost 890 hectares and contains 80 mounds. At its peak around 100 CE it covered 16 square kilometres and had about 120 man made mounds of all shapes, sizes and function. It population was slightly more than London.
