The appointment of a current political Schedule A or Schedule C Executive Branch employee or a former political Schedule A or Schedule C Executive Branch employee who held the position within the last five years to a competitive or non-political excepted service position under title 5 of the U.S. Code.
Adam and Eve were the first parents. The Jewish, Islamic, and Christian religions hold that all people are descendants from them. According to Jewish tradition, Adam and Eve had 56 children. This was possible, in part, because Adam lived to be 930 years old.
Genesis 5:4 says, After Seth was born, Adam lived 800 years and had other sons and daughters.. Since Adam and Eve were the first man and woman, and since God had commanded them (and their descendants) to be fruitful and multiply (Genesis 1:28), it seems reasonable to conclude that Cain married one of his many sisters.