The use of steel in the Jaredite time period has also been criticized. Again we turn to Dr. Nibley.
“… one cannot be dogmatic in dating the appearance of steel since there is more than one kind of steel with ‘a whole series of variants in the combination of iron and steel components’ in ancient times; and when a particularly fine combination was hit upon it would be kept secret in ‘individual workshops’ and ‘passed on from father to son for many generations.’ Hence it is not too surprising to learn that ‘even in early European times’ there is evidence of the production of steel ‘of very high quality’ and extreme hardness. Further east steel is attested even earlier.”
The location of the hill Ephraim is not given nor is there any connection to Ephraim, the son of Joseph, who was sold into Egypt.
In the fourth generation of the Jaredites, there are mentioned two different kings—Shule and Corihor. Shule was a righteous king (Ether 7:10–11) and Corihor was evil, but repented (v. 13). In the fifth generation Noah, son of Corihor, rebelled and obtained part of the kingdom but was slain by Shule (v. 18). A brother of Noah named Cohor carried on the rebellion of Noah, but was unsuccessful and Shule’s kingdom prospered and waxed great. Thus, the saga of the Jaredite kings, howbeit briefly told, goes on with the righteous finally gaining the upper hand (v. 19).