Ozniak (Mrs.)

Teaches: History
She is so knowledgeable that people believe she is actually a time-traveller. Her recollections of historical events are almost first-hand, as if she had been there herself.
There are rumours that she had a cup of tea on top of the pyramid in Giza the day after it was finished, a cup of coffee on the Titanic, and a cup of chock-hotlit (similar to hot chocolate, but better) on the summit of Everest with Hilary and Tensing in 1953.