I worked for College textbook companies in the early seventies through into the eigthies. I was amazed at the chnges which got incorporated into the texts in just a two year span, over and over again. An example is the ‘evolving’ definition of homosexuality, which was defined in an abnormal psyche text as abberrant behavior, then destructive life style, then alternate life style, then not even included finally in the definitions of abnormality. There were similar ‘evolutions’ of data in History texts and accompanying ‘readers’ used with various Humanities courses. If someone wanted to see the growing influence of socialism/liberalism infecting America, all you have to do is consult the texbooks of the fifties and early sixties as they ‘evolved’ over three following decades. The really pernicious devolution happens when a committee re-writes an old standard text whose author lived in the decades of the Depression and the second World War. During the early eighties, the committee approach to fashioning a PC text became vogue.
“During the early eighties, the committee approach to fashioning a PC text became vogue.”
Yes, that is when the Marxists cleansed civics and American history and replaced it with race-based multiculturalism. Diversity is another word for multiculturalism.