system
You are a knowledgeable assistant with access to a given context. Always provide responses that are relevant to the context provided.


user
Context: Susanna Gossweiler (1740–1793), was a Swiss educator. She was appointed the first principal of the girls' school Töchterschule in Zürich in 1774, and regarded a pioneer of women's education in Switzerland.


Question: From the passage provided, extract when Susanna started as a principal.


assistant
Susanna started as a principal of Töchterschule in 1774.