This is the 20th annual Martin Luther King holiday in United States, and it is the first since the passing of Rosa Parks, often called the mother of the civil rights movement.

• 今年第20个马丁·路德·金周年纪念日，而且，它也是罗纱·帕克丝这位被誉为民权运动之母逝世后的第一个纪念日。