To the satisfaction of virtually all scientists, the "mystery" of who had built the mounds in the American Midwest and Southeast was solved:
A) in the 1600s
B) just a little more than 125 years ago
C) by Thomas Jefferson in the eighteenth century
D) fewer than 50 years ago with the development of radiocarbon dating

Question

Quizplus · Accepted Answer

The mystery of who built the mounds in the American Midwest and Southeast was solved just a little more than 125 years ago, with the advent of archaeological excavations and research in the late 1800s.

To the Satisfaction of Virtually All Scientists, the "Mystery" of Who