Over 1,000 years ago, schools for witches and wizards were founded in European countries to instruct students in magic. Hundreds of years later, late to the party as usual, American witches and wizards started their own school, after the disaster that was the Salem Witch Trials. Since then, Salem Academy has flourished as well as its European cousin schools.
As times grew modern, American witches and wizards became immersed in Muggle culture. Now in the 21st century, Salem Academy seems like any other high school. There's just one difference.