Historical clue formulations

• Origin of a stream: Abbr. — 2014-04-27
• Coral ___ (city near Oakland Pk., Fla.) — 2013-10-04
• Winter follower: Abbr. — 2013-02-04
• Colo. ___, Colo. — 2012-01-22
• Silver ___, Md. (Wash. suburb) — 2011-07-23
• It begins in Mar. — 2009-09-22
• May days?: Abbr. — 2009-01-30
• Part of some resort names: Abbr. — 2009-01-15
• When flowers bloom: Abbr. — 2008-09-18
• When Arbor Day is observed: Abbr. — 2008-04-05
• White Sulphur ___, W. Va.: Abbr. — 2008-02-07
• A season: Abbr. — 2007-02-10
• Part of some resort names: Abbr. — 2004-12-04
• It begins in Mar. — 2004-10-26
• Abbr. in a resort's name — 2000-02-26
• A season: Abbr. — 1997-03-23
• Time of yr. — 1994-09-08