Arthur, the beloved 22-year-old series on PBS Kids, has just introduced its first queer character, Arthur's teacher, Mr. Ratburn, who got married on yesterday's season premiere (May 13). Watch it in full online-and learn why, even though he's not the first queer character on children's television, he still breaks new ground.

The series, based on the books by Marc Brown, features anthropomorphic aardvark Arthur and his friends and family. In yesterday's episode, "Mr. Ratburn's Special Someone," the children learn that their third-grade teacher, Mr. Ratburn, is getting married, but they don't know to whom. Still, one of Arthur's friends opines, "Teachers don't get married. It's just wrong!" which leads to an amusing debate over whether teachers have any life outside the classroom. It's not that the kids don't want him marrying another man-it's that they can't envision him marrying anyone.

Later, they see Mr. Ratburn being berated by a strongly opinionated woman they assume is his fiancée (played by the wonderful and also queer Jane Lynch). They decide to split them up so she doesn't "toughen him up" as promised-which they imagine could lead to extra homework assignments. They ultimately learn that she is his sister, in town for his wedding.

The newly-approved version instead places issues of gender incongruence under a chapter on sexual health.  A World Health Organization expert said it now understands transgender is "not actually a mental health condition".  Human Rights Watch says the change will have a "liberating effect worldwide".

Before the 1970s, most  stereotypes about the LGBTQ community  were extremely negative. In fact, for much of the 19th and 20th centuries, a vast majority of the population (including doctors and scholars) believed that members of the LGBTQ community suffered from mental disorders.

Then, the Stonewall Riots changed everything. In 1969, police raided a gay bar called the Stonewall Inn in New York City and those inside fought back. This wasn't just a historic moment-it was a movement. In the following decade, LGBTQ rights were at the forefront of  social justice activism-which, in turn, led to increased awareness about the  LGBTQ community. And while the AIDS epidemic in the 1980s created more obstacles and stereotypes about LGBTQ people, by the 1990s, that all started to change. LGTBQ characters began appearing with regularity on  television with shows like Queer as Folk, The L Word, and Will&Grace.

Still, the LGBTQ community has always been pegged as "different," and therefore subjected to stereotyping. In order to shed on the truth, we've rounded up a list of some of the most common LGBTQ stereotypes. If you hear these phrases, know that they're all utterly, demonstrably false. Then, educate others by correcting them, too. And for more phrases to make a mental note of, here are  20 Stereotypes to Remove from Your Vocab in 2019.

Click to see this informative list

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