Tuesday will mark the 40th anniversary of the Supreme Court’s ruling on Roe v. Wade that struck down many state and federal restrictions on abortions, and it’s a perfect time to reflect on how much (and also how little) women’s reproductive health issues have changed since then.

Abortion remains a highly charged political issue — leading Congress to continue to ban federal funding for abortion procedures. And women in most states are finding it harder lately to get one with the recent passage of more restrictions, like waiting periods.