[naraht]

I was looking at the current situations at Delta Phi Epsilon Foreign Service Professional and was thinking about situations where a multiple chapters (as a group) or an otherwise significant part of a Greek Letter Organization rebelled against National Leadership. (These entries are definitely not identical)

The ones that spring to mind are:
* Delta Sigma Theta's founding from those originally part of the undergraduate membership of Alpha Kappa Alpha in 1913.
* Phi Sigma Epsilon - Phi Sigma Phi was founded by chapters of Phi Sigma Epsilon which declined to participate in the 1987 National merger of Phi Sigma Epsilon into Phi Sigma Kappa.
* Tau Epsilon Phi in the late 2000s and early 2010s where among other things the National Executive director claimed that no chapters were eligible to vote. Eventually a judge forced new elections.
* Alpha Phi Omega (Service) three chapters previously allowed to stay all-male due to be grandfathered in at the time fraternity going co-ed leave to form Alpha Delta when the exemption from having to be co-ed is removed. A few others previously exempted groups joined them later. (2006)
* Delta Phi Epsilon (Professional) multiple chapters callling for the resignation of the Fraternity General Secretary, etc. and no longer recognizing the national Leadership (late 2010s)

I'm sure there are others, and probably led to some Greek Letter Organizations *complete* coming apart...