History of BT from what I've remembered, have looked up, and have heard
Some of this is hearsay, so please correct me if I am wrong about anything.
Also, it is far from complete, especially in the early days. If you have 
anything that you would like to add, please tell PonisEnvy!

*****
THINGS THAT I WOULD LIKE TO ADD
1. first games for each modmin and other prominent members of the community
(message me to be added)
2. Other firsts such as when the MineCraft and TF2 servers went online, etc
3. First shpony showing?
4. Anything else you can think of!!!
*****

(#1) 2011-9-23 reddit user purekhaos made a post for a drinking game on 
synchtube. (http://redd.it/kppme). Also, Malsententia's first games.

(#2) 2011-9-30 Malsententia repeated the drinking games the next friday night, 
and began the tradition that spawned BerryTube. (http://redd.it/ky1o0)

(#38) 2012-6-8 My (PonisEnvy's) first games! (I didn't become a regular until 
July, though)

(#39) 2012-6-15 First Cades sighting and r's first games. (http://redd.it/v52gy)

(#40) 2012-6-23 omnomtom held an unofficial drinking game on saturday because he
had to leave early from the Friday night games. This started the tradition of
Saturday games. (http://redd.it/v4gdc)

(#41) 2012-6-29 miggyb held the first early/European/pre games to help our 
European friends drink with us as much as possible. This started this tradition.
(http://redd.it/vth9y)

(#52) 2012-9-14 http://berrytube.tv is live!(http://redd.it/zwryc) Thanks Cades!

(#53) 2012-9-21/22/23 THE ONE YEAR ANNIVERSARY!!!! (http://redd.it/109t66)
Enter: Worldtrekka, littlecolt, and others.

2012-10-22 First ever Mystery Movie Monday! (http://redd.it/12bd9g)

(#61) 2012-11-16 Worldtrekka level drunk becomes a meme (http://redd.it/13e02r)

2012-11-7 Sehro livestreaming service is online!!! (http://redd.it/12u4ws)
Used for "Raw Livestreams" (Sehro Sunday, MMMonday, new episodes, etc)

(#67) 2012-12-28 Sehro is new mod! (http://youtu.be/a7NUqz_smUI)

2013-4-21 First Berrytube TF2 tourney.

(#86) 2013-5-10 Sehro, Blueshift, Lavender, and PobodysNerfect get promoted to 
admins and Toastdeib, Marminator, Littlecolt, Jerick, and Q0 become new mods!
(http://youtu.be/4A58NHcRrqU)