Thousands of middle-school students converged on Yonge-Dundas Square in downtown Toronto on Wednesday to celebrate Freedom Day.

The annual event was hosted by the Simon Wiesenthal Center for Holocaust Studies.

Speakers ranged from holocaust survivor Max Eisen to dance troupe SolePower, and culminated in an inspirational speech from former Canadian astronaut Chris Hadfield.

Max Eisen talked about surviving a concentration camp.

“When I was in Auschwitz, trying to survive on 300 calories a day,” he said, “I thought of two things: food and freedom.”

The downtown square was packed with students, who sat cross-legged under a blazing sun, shoulder to shoulder, to listen to the speakers.