Historical clue formulations

• Co. that launched Dungeons & Dragons — 2017-10-19
• Original D&D co. — 2015-11-05
• Co. that originated Dungeons & Dragons — 2015-09-20
• Original Dungeons & Dragons game co. — 2015-05-03
• Original D&D co. — 2015-04-18
• Classic fantasy game co. — 2014-07-20
• Co. purchased by Wizards of the Coast — 2013-09-07
• Old D&D co. — 2013-08-01
• Co. that introduced Dungeons & Dragons — 2013-07-12
• Dungeons & Dragons co. — 2013-03-24
• Old game co. that made D&D — 2012-04-20
• Old Dungeons & Dragons co. — 2011-02-02
• Original Dungeons & Dragons co. — 2009-02-07
• Game co. that originated Dungeons & Dragons — 2007-07-08
• Longtime Dungeons & Dragons maker — 2005-03-17
• Dungeons & Dragons co., once — 2004-07-31
• Early Dungeons & Dragons co. — 2003-08-13
• Dungeons & Dragons game co. — 2003-07-20
• Game co. that originated Dungeons & Dragons — 2003-06-01
• Dungeons & Dragons game co. — 2000-09-24