What were the names of Adam and Eve's two sons?

Explanation

In the Bible's Old Testament it is said that God created man, as Adam and the woman Eve. They lived in the Garden of Eden. One day, Eve enticed Adam to taste an fruit from a tree, that God had said they should not eat from. Therefore, they were expelled from the Garden of Eden to Earth, where Eve was the first woman and Adam was the first man. Eve means life, as she delivered life when she gave birth to all people. Together with Adam, they had two sons, Cain and Abel.