This day in theme parks, September 24th:

Uni Social

2010

It has begun. Halloween Horror Nights XX has heralded a new era of darkness. http://bit.ly/8YXznX #HHN

— Universal Orlando Resort (@UniversalORL) September 24, 2010

2011

Ready for the hordes of mutants, monsters & maniacs roaming our darkened studio streets? They’re ready…. For you #HHN http://t.co/mVdu1Lpm

— Halloween Horror Nights (@HorrorNightsORL) September 24, 2011

2012

First weekend of #HHN22 is over... Any survivors? pic.twitter.com/QyExQQEr

— Halloween Horror Nights (@HorrorNightsORL) September 24, 2012

2013

Who lives in a pineapple under the sea... and has fun at #UniversalOrlando? SpongeBob SquarePants! pic.twitter.com/TfX8gXluLF

— Universal Orlando Resort (@UniversalORL) September 24, 2013

2014
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2015

Good luck. #HHN25 starts now. pic.twitter.com/6wVpJRAKuf

— Halloween Horror Nights (@HorrorNightsORL) September 24, 2015

2016

Snap your hearts out, heathens! #HHN26 pic.twitter.com/8uqJUlipEY

— Halloween Horror Nights (@HorrorNightsORL) September 24, 2016

2017

It's time to Purge and you are.. #HHN27

— Halloween Horror Nights (@HorrorNightsORL) September 24, 2017

2018

The Amulet of Fear interactive lanyard is the #HHN28 merch item that you can't live without.

Learn more about it at https://t.co/izovsxDaju. pic.twitter.com/LscpJuTnci

— Halloween Horror Nights (@HorrorNightsORL) September 24, 2018

2019