Simplify the following text for a Grade 9 native English-speaking person.
Original: The matter of back-alley abortion in America received public attention leading up to the legal proceedings of Roe v. Wade , the 1973 United States Supreme Court decision which legalized abortion in America .
Simplified: The argument of back-alley abortions was used to help make abortion legal in the United States . In 1973 , the US Supreme Court decided that abortion should be legalized .