Complex sentence: Nørre Gymnasium was founded in 1818 by Caroline Wroblewsky as a school for young girls and has since become one of Copenhagen's largest gymnasiums offering both Danish as well as international education.
Split into simpler sentences: Nørre Gymnasium was founded in 1818 by Caroline Wroblewsky as a school for young girls. It has since become one of Copenhagen's largest gymnasiums offering both Danish as well as an international education.