The Nephites fortified their cities (cities that left no evidence of their existence).
1:7
The Nephites, "multiplied exceedingly" and "became exceedingly rich" in gold, silver, iron, copper, brass,
and steel making tools and weapons "of every kind." This was before steel existed, of course, and no evidence
for any of these Nephite weapons, tools, cities, or technologies have ever been found.
1:8
