Final answer:
The Mississippian culture began to fade after contact with Europeans due to battles, diseases, and forced relocations.
Step-by-step explanation:
The Mississippian culture began to fade after contact with Europeans because American Indians died in battle with Europeans and through exposure to European diseases. The arrival of Europeans brought new diseases to which the Native Americans had no immunity, leading to devastating losses of life. Additionally, conflicts with European settlers and forced relocations also contributed to the decline of the Mississippian culture.