Short answers, pulled from the story.
SLATE was founded in February 1958 by a group of students at the University of California Berkeley. The organization began as a slate of candidates running on a common platform before the university administration refused to recognize them as a political party.
The UC Regents and administrators banned SLATE from the campus in 1961 because the group insisted on the right to take stands on off-campus issues. The administration viewed SLATE as a threat to the established order due to their support for a Berkeley fair housing ordinance in 1959 and their opposition to House Un-American Activities Committee hearings in May 1960.
The SLATE summer conferences served as political battlegrounds to forge the future of the American left and create a network of activists. These events brought together diverse voices ranging from Young Democrats to Trotskyists to discuss topics such as civil rights and the role of universities in the Cold War.
SLATE voted to dissolve itself in October 1966 after losing the campaign for student body president and failing to pass a new student government constitution in a referendum in April 1966. The group ended its operations because the Free Speech Movement had achieved the rights SLATE fought for and became too broad to be contained within the original framework.
Jackie Goldberg served on the Los Angeles school board and city council before serving in the California Assembly from 2002 to 2006. Bill Lockyer served in the California State Legislature for 25 years and later served as Attorney General of California from 1999 to 2007 and state Treasurer from 2007 to 2015.
The first SLATE reunion was held at the Berkeley campus in June 1984 and was attended by some 150 former members out of an estimated 850 one-time dues-paying members. A second reunion took place in 2000 at a retreat center and a third half-day reunion occurred in 2004 in conjunction with the 40th anniversary of the Free Speech Movement.