GLSEN began in 1990 as the Gay and Lesbian Independent School Teachers Network, or the GLSTN. It was originally made up of seventy gay and lesbian educators, and had only two GSA chapters in the whole nation. Just twenty years ago, there was a disappointing amount of ignorance about LGBTQI rights and LGBTQI issues and their importance in the context of a forward-moving society. Only one state had laws to protect LGBT students from harassment in school, and a general lack of information on the subject besides "gays are evil and disgusting." However, with the continual effort of the then-GLSTN, more and more people became aware of these very relevant issues. GLSEN also facilitates over 3,600 GSA groups.
Kevin Brett Jennings was born on May 8, 1963 at Fort Lauderdale, Florida. He attended the Paisley Magnet School at Winston-Salem, North Carolina. While he did well academically, he was often bullied and taunted for his effeminate behavior. In high school, he even attempted suicide when he realized that he was gay. After moving to Hawaii and attending Harvard University, Jennings became a history teacher. In 1988, at Concord Academy in Massachusetts, Jennings started the first gay-straight alliance ever with a female student. Former Governor William Weld of Massachusetts appointed Jennings as one of the co-chairs to the Education Committee of the Governor's Commission on Gay and Lesbian Youth. Massachusetts was the first state in the United States to outlaw discrimination in public schools based on sexual orientation when the State Board of Education adopted Jennings's report, "Making Schools Safe for Gay & Lesbian Youth" as policy. In 1990, Jennings founded GLSTN, now known as GLSEN, and stepped down as head in 2008. By then there were already 40 full-time staff members and two regional offices. In less then 20 years, Kevin Jennings started from a small gay-straight alliance at a school to a full-fledged national organization that is leading the struggle against discrimination, bullying, and harassment based on gender identity and sexual orientation.