Catholicism has always been a huge religion, and has been in control of the world for previous ages. For that reason, they were the ones who could dictate when to start the timeline, and chose the birth of Christ as that starting point.
If you are talking about the Second Industrial Revolution, then the person who had a monopoly in the steel industry was Andrew Carnegie.
Hope this helps!
Answer:
I don't know sorry in which subject is this
D. They secured the U.S. border of the Oregon Territory by negotiating a treaty with England.
Answer:
2, it's the best option out of all of them. If I had a choice though I would say 8 is the best.
