1970s: Karen Anne Quinlan's respirator is disconnected as a result of a New Jersey Supreme Court ruling.

Today: Dr. Jack Kevorkian is found guilty of second-degree murder in 1999 for helping patient Thomas Youk, who suffered from LouGehrig's disease, to die.

1970s: The American Psychological Association votes to remove homosexuality from its standard diagnostic manual of psychological diseases.

Today: The U.S. Supreme Court rules that the Boy Scouts may exercise their right to association by excluding homosexuals from leadership positions.

1970s: The heart of a chimpanzee is placed into the body of a fifty-nine-year-old man in Cape Town, South Africa.

Today: Scientists discuss genetically altering pig organs with human genes for the purpose of "xenotransplant," an animal-to-human organ transplant procedure.

1970s: Jimmy Carter is elected president of the United States in 1976 after enjoying much public popularity.

Today: George W. Bush is named president of...