Is that right? I read one year, but the information wasn't directly from Singer so it may have been wrong.
In 1993, ethicist Peter Singer shocked many Americans by suggesting that no newborn should be considered a person until 30 days after birth and that the attending physician should kill some disabled babies on the spot. Five years later, his appointment as Decamp Professor of Bio-Ethics at Princeton University ignited a firestorm of controversy, though his ideas about abortion and infanticide were hardly new. In 1979 he wrote, “Human babies are not born self-aware, or capable of grasping that they exist over time. They are not persons”; therefore, “the life of a newborn is of less value than the life of a pig, a dog, or a chimpanzee.”1