The following “history” is unofficial,as is the whole blog. The following dates have been researched throughout the internet and listed below-

Fight my monster history-

January 2011 – Fight my monster opens up to the public and quickly takes off.

April 2012 – Fight my monster gets over 1 million players.

August 2012- Fight my monster moves it’s headquarters for new opportunities

25th of October 2012 – Fight My Monster releases the Monstrous Official Guide

More soon!

Sources:

Fight My Monster Help Blog