The 24 men and six women climbed the capitol steps, and one man, Bobby Seale, began to read from a prepared statement. “The American people in general and the black people in particular,” he announced, must
take careful note of the racist California legislature aimed at keeping the black people disarmed and powerless Black people have begged, prayed, petitioned, demonstrated, and everything else to get the racist power structure of America to right the wrongs which have historically been perpetuated against black people The time has come for black people to arm themselves against this terror before it is too late.
Seale then turned to the others. “All right, brothers, come on. We’re going inside.” He opened the door, and the radicals walked straight into the state’s most important government building, loaded guns in hand. No metal detectors stood in their way.
It was May 2, 1967, and the Black Panthers’ invasion of the California statehouse launched the modern gun-rights movement.
http://www.theatlantic.com/magazine/archive/2011/09/the-secret-history-of-guns/308608/