<span>created the House and senate branches of the US legislature for more equal representation.</span>
Answer:
If we are talking about current times, manufacturing production of the world has taken a crear shift toward the Far East.
Currently, the largest East Asian country: China, is also the largest manufacturer in the world, accounting for 28% of total global manufacturing. This has led some commentators to declare that China is the "factory of the world".
Other East Asian countries like Japan, South Korea, Taiwan and Vietnam, also have large manufacturing sectors. In the case of the first three countries, in more technologically advanced sectors, while Vietnam is mostly developing a cheaper manufacturing sector that has replaced China in some sectors.
It was a mixture of various reasons, although for the Spanish and Portuguese it was a question of reaching India for spice trades after the embargo instated on them by the Ottoman Turks.
The Portuguese went around Africa, and the Spanish tried sailing west across the barren ocean, and accidentally discovered America through Columbus.