Leaders pay tribute to Holocaust survivor, Nobel Peace Prize laureate Elie Wiesel

Holocaust survivor, Nobel Peace Prize laureate, author and activist Elie Wiesel died Saturday at the age of 87.

For more than a half-century, he voiced his passionate beliefs to world leaders, celebrities and general audiences in the name of victims of violence and oppression.

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He wrote more than 40 books, but his most influential by far was "Night." His best-selling memoir was based on his experience in the Auschwitz concentration camp.

Wiesel lived in New York and commuted to Boston University for almost three decades, teaching philosophy, literature and Judaic studies.