This day in theme parks, August 20th: Uni Social 2010 New Halloween Horror Nights terrors will soon be revealed http://bit.ly/9czCAT #HHN — Universal Orlando Resort (@UniversalORL) August 20, 2010 2011 Twitter followers, here’s a sharp hint just for you. http://t.co/ML4NNLV — Halloween Horror Nights (@HorrorNightsORL) August 20, 2011 2012 Today, […]