I first read his most famous book, A People’s History of the United States, in college. This book was pivotal to my own radicalization; it was the first major work I read that questioned history as it was presented to me in school.  I learned from Zinn that there are multiple sides to every story, and the story is told most often is probably the story of the oppressors. I learned from Zinn to question institutions and authority. He will continue to be one of my intellectual heroes.

We were not born critical of existing society. There was a moment in our lives (or a month, or a year) when certain facts appeared before us, startled us, and then caused us to question beliefs that were strongly fixed in our consciousness – embedded there by years of family prejudices, orthodox schooling, imbibing of newspapers, radio, and television.
– Howard Zinn, “Changing Minds, One at a Time”, in: The Progressive magazine, March 2005