Hillary Clinton shattered a major glass ceiling tonight, and took to Twitter to mark the moment. Her first tweet after she became the Democratic Party's official nominee reads simply, "History." Then, along with the message "Stronger together," she tweeted a video of Bernie Sanders asking all delegates to vote for Clinton so that she could become the nominee. And, finally, she posted a video about the women's liberation movement. "This moment is for every little girl who dreams big," she wrote. "#WeMadeHistory." (More Election 2016 stories.)