Historical clue formulations

• Links grp. — 2021-01-24
• Green org. — 2020-03-14
• Green-conscious grp. — 2019-09-06
• Links org. — 2016-11-28
• Org. whose website has many links? — 2015-09-14
• Links org. — 2015-04-01
• Grp. concerned with courses — 2010-10-03
• Links org. — 2010-09-26
• Bob Jones Award org. — 2009-05-17
• It serves many courses: Abbr. — 2006-05-14