Answer:
People who didn't own slaves, as people who aren't just old crusty fat white men.
Scientifically no. Earth has existed for millions of years. The Bible doesn't tell you about dinosaurs yet we know that they were real because of fossils. But according to the Bible we are only a few thousand years old. I guess it depends on what you personally want to believe in and if you are going mix science with religion.
As the twentieth century progressed, the size of the United States Federal Government expanded dramatically. This naturally resulted in the Vice President having to take on more of the responsibilities that the President simply didn't have time to take care of.