Today in Peace and Justice history on October 20, 1962
A folk music album, "Peter, Paul and Mary," hit No. 1 on U.S. record sales charts. The group’s music addressed real issues – war, civil rights, poverty – and became popular across the United States. The trio's version of "If I Had A Hammer" was not only a popular single, but was also embraced as an anthem by the civil rights movement.