Throw light on the Feminist Movement in the 20th century?

I assume you mean the Feminist movement of the mid
twentieth century and part of the 60's turbulence. The movement got its greatest
momentum from the publication of The Feminine Mystiqueby Betty
Fredan who said that the 50's image of the stay-at-home housewife was a myth that did
not represent reality. She said such women were in a "comfortable concentration camp." 
In 1966 Fredan with the help of others organized the National Organization for Women
(NOW.) Proponents of the movement called themselves "liberated
women."

Among the accomplishments of the Feminist movement:
Title IX of the Educational Amendments Act of 1972 was amended to require Colleges to
institute affirmative action programs to admit more women; Congress passed the Equal
Rights Amendment which had been tied up in Congressional Committees for over 50 years;
and many formerly all male institutions such as Harvard, Yale and Princeton began
admitting women. NOW was instrumental in bringing Roe vs. Wade to
the Supreme Court, which struck down state laws forbidding abortions during the first
three months of pregnancy.  There were some failures: The Equal Rights Amendment was not
ratified by the requisite number of states, even when the ratification period was
extended; and the abortion movement created a backlash among Catholics and
fundamentalist Protestants. Still, the role of women in society had changed forever..