Today marks the 40th anniversary of the landmark Supreme Court decision Roe v. Wade, aka abortion's official birthday! And according to a new poll conducted by NBC News/Wall Street Journal, for the first time since the landmark case, a majority of Americans believe abortion should be legal in all or most instances.

Moreover, thanks to the highly charged anti-abortion, anti-contraception rhetoric over the past year, of the 1,000 people polled, 70 percent opposed overturning Roe v. Wade—the highest percentage since 1989:

... That’s up from the 58 percent who said the decision shouldn’t be overturned in 1989; the 60 percent who said this in 2002; and the 66 percent who said this in 2005.

By comparison, just 24 percent now want the Roe v. Wade decision overturned, including 21 percent who feel strongly about this position.

Much of this change, the NBC/WSJ pollsters say, is coming from African Americans, Latinos, and women without college degrees—all of whom increasingly oppose the Supreme Court decision being overturned.