Complex sentence: Strang asserted that no other version of the Decalogue contains more than nine commandments, and speculated that his fourth commandment was lost perhaps as early as Josephus' time (circa 37-100 AD).
Split into simpler sentences: Strang asserted that no other version of the Decalogue contains more than nine commandments. He equally speculated that his fourth commandment was lost perhaps as early as Josephus' time (circa 37-100 AD).