Original sentence: Feminism became organized in the 19th century as people increasingly came to believe that women were being treated unfairly.More recently, a new generation of feminists  have started third-wave.Whether this will be a lasting evolution remains to be seen as the second-wave has by no means ended nor has it ceded to the third-wave feminists
Edited sentence: Feminism became organized in the 19th century as people increasingly perceived that women were oppressed in the male-centered society (see patriarchy).There is a so-called third-wave, but feminists and others disagree as to its necessity, its benefits, and its ideas, much as second-wave feminism was debated