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Global SchoolNet (GSN) is a nonprofit 501(c)(3) international educational organization that serves as a clearinghouse for collaborative educational projects, many that are based on the Constructivist Learning model. The organization coordinates projects and competitions focused on humanitarian issues, diplomacy, leadership, innovative teaching, entrepreneurship, STEM, and other academics for schools and youth organizations internationally. About 150,000 educators from 194 countries have registered as members of Global SchoolNet, and about 5.5 million students from 109 countries have participated in GSN projects as of 2020. Global SchoolNet is known for two international competitions, the International CyberFair for students in grades kindergarten through high school, and the U.S. State Department-sponsored Doors to Diplomacy for ages 12 through 19. Global SchoolNet was established in 1984 as Free Educational Mail (FrEdMail) in San Diego, California, where its headquarters still exists. Global SchoolNet was founded by San Diego County teachers Yvonne Marie Andrés and Al Rogers. Andrés reported the seed for the program was planted in 1983 when she received an Apple IIe computer while teaching at Pacific Elementary School in the Oceanside Unified School District in San Diego county. The computer was one of 10,000 that Apple had donated to California public schools for the program "Kids Can't Wait". Andrés first used the computer in a keypal project with San Diego students and students in England, but soon realized there needed to be a stronger e-learning component. In 1983, Andrés began working with Rogers on expanding the idea of connecting schools using e-learning projects. Rogers at the time was a computer specialist for the San Diego Office of Education and was interested in software that could help improve students' writing. That year, Rogers created the software program Free Educational Writer, or FrEdWriter, which prompted students through different writing exercises.