2 added 9 characters in body
source | link

The house system is a British thing and has been used in English boarding schools since at least the mid-19th18th century.

Like numerous things at Hogwarts, it's presumably copied more or less directly from Rowling's own school experience (For example, the OWLs are obviously an expy of the old Ordinary Level testing) with no real explanation given, as it was written for a British audience, who would already be somewhat familiar with the concepts and thus wouldn't need them explained to them.

The house system is a British thing and has been used in English boarding schools since the mid-19th century.

Like numerous things at Hogwarts, it's presumably copied more or less directly from Rowling's own school experience (For example, the OWLs are obviously an expy of the old Ordinary Level testing) with no real explanation given, as it was written for a British audience, who would already be somewhat familiar with the concepts and thus wouldn't need them explained to them.

The house system is a British thing and has been used in English boarding schools since at least the mid-18th century.

Like numerous things at Hogwarts, it's presumably copied more or less directly from Rowling's own school experience (For example, the OWLs are obviously an expy of the old Ordinary Level testing) with no real explanation given, as it was written for a British audience, who would already be somewhat familiar with the concepts and thus wouldn't need them explained to them.

1
source | link

The house system is a British thing and has been used in English boarding schools since the mid-19th century.

Like numerous things at Hogwarts, it's presumably copied more or less directly from Rowling's own school experience (For example, the OWLs are obviously an expy of the old Ordinary Level testing) with no real explanation given, as it was written for a British audience, who would already be somewhat familiar with the concepts and thus wouldn't need them explained to them.