Howard Zinn was a historian and author born in 1922 who wrote A People's History of the United States challenging standard narratives. He participated in WWII bombings that killed civilians. In 2004, he published Voices of a People's History with primary sources. The Zinn Education Project was later launched using A People's History in classrooms. Mendez v. Westminster in 1946 challenged school segregation in California, ruling it unconstitutional and influencing Brown v. Board of Education.