How was 1968 a turning point in the Vietnam War and civil rights?

Since that was the year I graduated from high school, I remember quite well all of the turning points in American history. In National Politics and the Vietnam War along with the youth revolution in culture, music, feminism, and independence there was a big change in attitude towards the government.  When college age students entered an era of rebellion through music, clothes, hair, drugs, etc., student leaders were not hesitant to lead demonstrations against the war.  Peace not violence was a big theme that changed attitudes and and the government started to listen. When some of the peaceful demonstrations got violent with the National Guard as in the Ohio 4 killings, parents as well as the general public became involved, so a recall and reexamination of why we were in Vietnam was questioned. Eventually this led to a pull out.  As for civil rights, the feminism movement brought about major changes in rights for women, the Equal rights Amendment, employment, and equal pay. 1968 was also the year of two significant human rights leaders, Martin Luther King and Robert Kennedy, and their assassinations.  This brought another awareness that things needed to change. I remember this all to well.