A talk by Professor Deborah Lipstadt on Holocaust denial and her legal battle against the notorious revisionist David Irving been viewed over 370,000 times online.
Prof Lipstadt gave the lecture, entitled "Behind the lies of Holocaust Denial" in the UK last month in the UK, as one in a series of prestigious TED talks.
She told her audience that when it came to Holocaust history, “there are facts, there are opinions, and there are lies. Truth is not relative.”
The 15-minute video of the talk has proved a huge hit since it was posted.