When was Sefton High School created?

Sefton High School in Sefton, Merseyside, England doesn't have a single, easily pinpointed creation date. It's the result of mergers and changes over time. There's no single founding year. To get a precise answer, you'd need to specify which specific school within the Sefton High School system (if there are multiple campuses or names over the years) you're asking about, and delve into local educational archives.