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BC
23000
AD
1100
1300
1500
1539
1656
1673
1675
1699
1720
1724
1756
1763
1764
1765
1769
1770
1771
1775
1776
1777
1778
1779
1780
1781
1782
1783
1784
1785
1787
1789
1790
1791
1792
1794
1797
1799
1800
1803
1804
1805
1807
1808
1809
1810
1811
1812
1814
1815
1816
1817
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Mysterious decline in population of Cahokia
Mounds sets in. By 1300 A. D., Cahokia lay abandoned. The area's natural
resources were probably depleted; a climatic change in the 13th century
may have affected their food supply; famine, disease, or warfare could
have played a role. Later tribes had no knowledge of the site to explain
to Europeans what happened. Archaeologists sometimes call the place "Sun
City" due to various symbols of the sun found on assorted artifacts.
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