Overturning Roe v. Wade wouldn’t turn back the clock to 1973

Protesters hold signs during a rally on May 21 against abortion bans put forward in several state legislatures at the Statehouse in Des Moines, Iowa. (AP Photo/Charlie Neibergall)

A wave of state abortion bans has set off speculation: What would happen if Roe v. Wade, the ruling establishing abortion rights nationwide, were overturned?