This FACTUALLY IS TRUE and here is the original source. Sex Bias in the US Code was co-authored by RBG & presented to the President & some members of Congress. Page 102 lists her recommendations on this subject - all taken verbatim from her damn paper:  Eliminate the phrase "carnal knowledge of any female, not his wife who has not attained the age of sixteen years" and substitute a Federal, sex-neutral definition of the offense patterned after S. 1400 §1633: A person is guilty of an offense if he engages in a sexual act with another person, not his spouse, and  (1) compels the other person to participate: (A) by force or(B) by threatening or placing the other person in fear that any person will imminently be subjected to death, serious bodily injury, or kidnapping;  (2) has substantially impaired the other person's power to appraise or control the conduct by administering or employing a drug or intoxicant without the knowledge or against the will of such other person, or by other means; or (3) the other person is, in fact, less than 12 years old.  https://www2.law.umaryland.edu/marshall/usccr/documents/cr12se9.pdf