The author of any textbook will say that there have been three major industrial revolutions. The first industrial revolution was steam industrial revolution, the second one based on coil and the production or major machines with the third happening recently where automated robots have starting to take over different jobs.
After the fall of the Western Roman Empire was the Dark Age its also called the<span> Middle Ages</span><span> or the </span>Medieval period which was from the 5th to the 15th <span>century.
Here is a set of flash cards from quizlet if you have any more questions about the western romans fall.
https://quizlet.com/133251347/the-fall-of-the-roman-empire-flash-cards/
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Answer: Checks and balances.
Explanation: The whole point of establishing a system of checks and balances was to prevent one of the branches of government from getting too powerful. In order to prevent this, each branch of government has the power to stop another branch of government in the event that they are abusing their powers. In the executive branch (the president), this includes the ability to veto bills. In the judicial branch (Supreme Court), this includes the power to declare an action unconstitutional. And in the legislative branch (Congress/Senate), they have the power of impeachment.