As you can guess, this is a timeline of the brony offensives over the internet.
As I have limited knowledge of this event, I will only list what I know.
Today is November 11, 2012. May marked the end of the 2nd wave of the Invasions and Offensives that engulfed portions of the internet for months. Yesterday, November 10, 2012 marked the beginning of the 3rd Invasion, which will engulf even more of the internet.
- October 10, 2010: My Little Pony: Friendship is Magic is launched on the new TV Channel "The Hub". Several users of the inageboard named 4chan take notice, and are quickly made converts. These users become the first in an invasive wave of people today called "bronies". MLP has collided with the world today.
- May 2011: The first invasion of the Bronies emds with the culmination of Season 1. The Bronies by now gained footholds in 4chan and possibly Reddit. Around this time, the Bronies also established a foothold on Wikia, with the MLP wiki.
- Summer 2011: The summer of 2011 marked the largest campaign ever seen by the bronies. It is in this period that the bronies spread like a wildfire, obliterating any masculine dominance found. In July, the Bronies began a massive offensive across wikia, quickly invading individual wikis such as the Call of Duty Wiki, Battlefield Wiki, and Medal of Honor Wiki. Many try to hold out over the next few weeks, but fail miserably, and are destroyed and converted.
- Fall 2011: As a result of the massive offensive over the summer, the Friendship Orbital Cannon is finally constructed, and used to obliterate several enemies of the herd. Resistance groups rise up, but are quickly quashed by bronies. Those not yet converted cry desperately for help.
- September 2011: The formal 2nd wave of the invasion begins, having more success than ever before. All organized resistance to the bronies has been demolished, and any potential threats are not seen.
- May 2012: The second invasion ends. A ceasefire is declared, lasting up until November 10.
- November 10, 2012: See Above
Did I miss anything?