It says that London and Africa are the places of darkness.
The correct answer is the Mississippians. They were a Native American group that was commonly found in the Mississippi area between 800 AD and 1600 AD but some tribes were inspired culturally by them and kept their culture alive as far as the 18th century.
It showed Britain that they were inferior and that they could not mess with the U.S. Especially after the war at the port of New Orleans.
