The main philosopher who spoke of this was John Locke. This is the idea of the social contract. According to it, if the ruler is unjust then the people can change him or her. This was one of the key aspects of the democratic principles that the founding fathers of the US adopted.
The head of the executive branch is the US President. The whole branch can veto proposals for laws, appoint federal judges, negotiate foreign treaties, and grant pardons
The murder of Franz Ferdinand brought World War l which was mostly pointed towards the freedom of the Europeans who were attacked by Hitler and his men
People think the earth is flat because it seems hard to fathom that you can still stay on the earth if you're on the North Pole. This theory, that the earth is flat, was well known for hundreds of years. The vikings were the first to figure out that the earth is not flat, though Christopher Columbus gets the credit.
Hope this helps! Have a happy holiday!
