Historical clue formulations

• Old civil rights org. — 2018-05-27
• March on Washington grp. — 2014-04-19
• Grp. organizing '60s sit-ins — 2011-12-02
• '60's civil rights org. — 2005-09-05
• 1960's civil rights org. — 2005-08-18
• 60's civil rights org. — 2000-10-23
• 1960's civil rights org. — 1999-02-18
• 60's Black Power grp. — 1996-05-07
• Rights org. estab. 1960 — 1995-01-16