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Last night in Philadelphia, Hillary Clinton became the first woman to accept a major party’s presidential nomination. In a speech delivered to the nation, she called for unity in the fight against GOP nominee Donald Trump.

"America is once again at a moment of reckoning," Clinton said. "Powerful forces are threatening to pull us apart. Bonds of trust and respect are fraying. And just as with our founders, there are no guarantees. It truly is up to us. We have to decide whether we all will work together so we all can rise together."

Last night was, of course, the first time that Clinton has spoken at a convention as her party's nominee, but it's far from her first go round on the big stage. She's spoken at four Democratic conventions since 1996, missing only one in 2012, when she was secretary of state and 10,000 miles away in the Southeast Asian nation Timor-Leste.

Kathleen Hall Jamieson, director of the Annenberg Public Policy Center at the Annenberg School for Communication at the University of Pennsylvania, has been watching Hillary Clinton's speeches and closely parsing her use of language closely over the years. She joins The Takeaway to discuss Clinton's public speaking evolution, from Wellesley College in 1969 to the 2016 Democratic National Convention.