Changes in voting qualifications and participation, the election of Andrew Jackson, and the formation of the Democratic Party—due largely to the organizational skills of Martin Van Buren—all contributed to making the election of 1828 and Jackson's presidency a watershed in the evolution of the American political system
Answer:
Bessemer had been trying to reduce the cost of steel-making for military ordnance, and developed his system for blowing air through molten pig iron to remove the impurities. ... This made steel easier, quicker and cheaper to manufacture, and revolutionized structural engineering.
Explanation:
The plague began to spread through European ports (city on the water)
Answer:
I believe it's the last one, if it's not I'm so sorry.
Explanation:
People went from manufacturing one object at a time by hand to manufacturing many objects in factories.
