The answer to the question given is:
<span>better mass production techniques
</span>Better mass production techniques BEST explains the increased totals for all cars made in the 1920s. Henry Ford, together with <span>General Motors and Chrysler emerging as the “Big Three” auto companies, </span> innovated mass-production techniques that became standard, by the 1920s.
What / or who are they: Delaware, Pennsylvania, New York, New Jersey
Why middle: These were the 4 of the 13 original colonies that were between the northern and southern colonies.
Religion: this is the sentence you really like to write. There were all sorts of religions present, but not one of them could dominate. These 4 colonies had Lutherans, Mennonites, Calvinists (mostly Dutch), and Presbyterians.
Commerce: mostly agriculture at the time, but not restricted to 1 crop as the south was. Had good ports and growing cities (New York, Philadelphia). I like to include the well respected intellectual hotbed of people there like Ben Franklin.
The Russians created a new communist government that aligned with the Central Powers instead.
Ahy trained historians of Japan in the Western world was too small to
sustain such an enterprise. Although that number has grown, the
general editors have thought it best to draw on Japanese specialists for
contributions in areas where they retain a clear authority. In such
cases the act of translation itself involves a form of editorial cooperation
that requires the skills of a trained historian whose name deserves
acknowledgment.