Women finally achieved the right to vote when the 19th Amendment became law in 1920. Here’s a good way to celebrate its centennial: Ratify the Equal Rights Amendment — or ERA — that completes the job of banning all forms of gender-based discrimination, not just in the voting booth.

The entire amendment contains only 24 words: “Equality of rights under the law shall not be denied or abridged by the United States or by any state on account of sex.” As Sens. Lisa Murkowski, an Alaska Republican, and Ben Cardin, a Maryland Democrat, wrote in The Washington Post: “It’s a little less than a tweet, but it will make a positive difference in the lives of millions of women.”