Trying to backtrack isn't the easiet. Wikipedia says KK:H was released 6/27/14, but this was the first post on KK:H's Facebook page.

Comments underneath began on June 25th. We'll try to track this down as the thread becomes more complete.
Please don't post here. I'm making a post for each week, with some extras to allow for errors. Then we'll come in and post the items, and any thread links etc for this week. Again, please don't post here at this time.
We have a working thread for this
project here, that welcomes your input. This won't be done in a day, and I thank everyone who's helping with this. Guess I'll start.
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Comments
Update 1.0.0
20 May, 2014 - iOS
Bug fixes and other improvements to game performance Update 1.0.1
Personally, I'm thinking this was the actual release of the game, but I don't think the Date can be right.
And then a few weeks later it sayd Android rolled out along with updates to iOS?
21 May, 2014 - Android
Bug fixes and other improvements to game performance
If anyone has any other info about these early dates, could you post anything you have in Project X? That's the brainstorming for the building of this thread.
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💜 Vats is Back ~ My Heart Sings 💜
We'll try and dig up extra info
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💜 Vats is Back ~ My Heart Sings 💜
July 7, 2014
*Turn on the heat in Punta Mita, Mexico! Beach photo shoots, a new place to date, quests and more! (level 10+)
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💜 Vats is Back ~ My Heart Sings 💜
*Take your star to London, England! Upscale ballroom appearances, new characters, quests, and more!
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🌟If you see a problematic post please dm the link🌟
💜 Vats is Back ~ My Heart Sings 💜
Update 2.0.0
Thank You LindaVB!
This marked the beginning of the Daily Gift Boxes.
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🌟If you see a problematic post please dm the link🌟
💜 Vats is Back ~ My Heart Sings 💜
🙅I Am NOT a Glu Employee🙅
🌟If you see a problematic post please dm the link🌟
💜 Vats is Back ~ My Heart Sings 💜
🙅I Am NOT a Glu Employee🙅
🌟If you see a problematic post please dm the link🌟
💜 Vats is Back ~ My Heart Sings 💜
🙅I Am NOT a Glu Employee🙅
🌟If you see a problematic post please dm the link🌟
💜 Vats is Back ~ My Heart Sings 💜
We had started getting GiftBoxes each day, and were collecting fangs, masks, and Halloween clothes as well. Hopefully we'll find a post about those for above this. Thanks SoundsPretty.
🙅I Am NOT a Glu Employee🙅
🌟If you see a problematic post please dm the link🌟
💜 Vats is Back ~ My Heart Sings 💜
🙅I Am NOT a Glu Employee🙅
🌟If you see a problematic post please dm the link🌟
💜 Vats is Back ~ My Heart Sings 💜
🙅I Am NOT a Glu Employee🙅
🌟If you see a problematic post please dm the link🌟
💜 Vats is Back ~ My Heart Sings 💜
🙅I Am NOT a Glu Employee🙅
🌟If you see a problematic post please dm the link🌟
💜 Vats is Back ~ My Heart Sings 💜
Event Thread
🙅I Am NOT a Glu Employee🙅
🌟If you see a problematic post please dm the link🌟
💜 Vats is Back ~ My Heart Sings 💜
Event Thread
🙅I Am NOT a Glu Employee🙅
🌟If you see a problematic post please dm the link🌟
💜 Vats is Back ~ My Heart Sings 💜
Event Thread
Midweek offer 04/29/2015
🙅I Am NOT a Glu Employee🙅
🌟If you see a problematic post please dm the link🌟
💜 Vats is Back ~ My Heart Sings 💜
Event thread
🙅I Am NOT a Glu Employee🙅
🌟If you see a problematic post please dm the link🌟
💜 Vats is Back ~ My Heart Sings 💜
And then the day before our next event......
🙅I Am NOT a Glu Employee🙅
🌟If you see a problematic post please dm the link🌟
💜 Vats is Back ~ My Heart Sings 💜
🙅I Am NOT a Glu Employee🙅
🌟If you see a problematic post please dm the link🌟
💜 Vats is Back ~ My Heart Sings 💜
And our next Update:
WEEKEND OF JULY 24th-26th, 2015
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🌟If you see a problematic post please dm the link🌟
💜 Vats is Back ~ My Heart Sings 💜
Event Thread
Fashion Thread
🙅I Am NOT a Glu Employee🙅
🌟If you see a problematic post please dm the link🌟
💜 Vats is Back ~ My Heart Sings 💜
Event Thread
Fashion Thread
🙅I Am NOT a Glu Employee🙅
🌟If you see a problematic post please dm the link🌟
💜 Vats is Back ~ My Heart Sings 💜
Event Thread
Fashion Thread
🙅I Am NOT a Glu Employee🙅
🌟If you see a problematic post please dm the link🌟
💜 Vats is Back ~ My Heart Sings 💜
Event Thread
Fashion Thread
🙅I Am NOT a Glu Employee🙅
🌟If you see a problematic post please dm the link🌟
💜 Vats is Back ~ My Heart Sings 💜
Event Thread
Fashion Thread
🙅I Am NOT a Glu Employee🙅
🌟If you see a problematic post please dm the link🌟
💜 Vats is Back ~ My Heart Sings 💜
Event thread
Fashion thread
~<Update 4.0.0 Sept 8th 2015>~
2015/09/08
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🌟If you see a problematic post please dm the link🌟
💜 Vats is Back ~ My Heart Sings 💜
Event Thread
Fashion Thread
🙅I Am NOT a Glu Employee🙅
🌟If you see a problematic post please dm the link🌟
💜 Vats is Back ~ My Heart Sings 💜
Event Thread
Fashion Thread
🙅I Am NOT a Glu Employee🙅
🌟If you see a problematic post please dm the link🌟
💜 Vats is Back ~ My Heart Sings 💜
[/QUOTE]
Guys Stuff
Event Thread
Fashion Thread
🙅I Am NOT a Glu Employee🙅
🌟If you see a problematic post please dm the link🌟
💜 Vats is Back ~ My Heart Sings 💜
Event Thread
Fashion Thread
🙅I Am NOT a Glu Employee🙅
🌟If you see a problematic post please dm the link🌟
💜 Vats is Back ~ My Heart Sings 💜
Guys Stuff
Event Thread
Event Fashion Thread
🙅I Am NOT a Glu Employee🙅
🌟If you see a problematic post please dm the link🌟
💜 Vats is Back ~ My Heart Sings 💜