The second president of the United States was John Adams.
Answer:
It was the first war to come into American living rooms nightly, and the only conflict that ended in defeat for American arms. The war caused turmoil on the home front, as anti-war protests became a feature of American life.
Answer: A state has the following four characteristics: population, territory, sovereignty, and government.
I guess the answer you are looking for is 1492, but Columbus actually didn't "discover" America he never set foot in North American. But he did land on various Carribbean Islands.