Founders Days Calendar

As you can imagine, there are a lot of fraternities and sororities out there. It’s not always easy to nail down their exact founding dates, but we’ve done our best to comb websites, books, and asked members over the years. We hope our calendar is useful to you.

If you see something that needs a corrections, please let us know by emailing info@campuspeak.com.

Men’s Groups

Women’s Groups

Acacia
May 12, 1904
acacia.org

FarmHouse
April 15, 1905
farmhouse.org

St. Anthony Hall
January 17, 1847
stanthonyhall.org

Triangle
April 15, 1907
triangle.org

Alpha Gamma Rho
October 10, 1904
alphagammarho.org

Alpha Gamma Sigma
January 28, 1923
alphagammasigma.org

Alpha Delta Gamma
October 10, 1924
alphadeltagamma.org

Alpha Delta Phi
October 29, 1832
alphadeltaphi.org

Alpha Epsilon Pi
November 7, 1913
aepi.org

Alpha Iota Omicron
October 16, 1998
alphaiotaomicron.com

Alpha Kappa Lambda
April 22, 1914
akl.org

Alpha Kappa Omega
March 31, 1997
akomega.org

Alpha Sigma Phi
December 6, 1845
alphasigmaphi.com

Alpha Tau Omega
September 11, 1865
ato.org

Alpha Phi Alpha
December 4, 1906
alpha-phi-alpha.com

Alpha Phi Delta
November 5, 1914
apd.org

Alpha Chi Rho
June 4, 1895
alphachirho.org

Alpha Psi Lambda
February 11, 1985
alphapsilambda.net

Beta Chi Theta
June 2, 1999
betachitheta.org

Beta Theta Pi
August 8, 1839
betathetapi.org

Beta Kappa Gamma
May 6, 1999
betakappagamma.org

Beta Sigma Epsilon
January 31, 2004
clubs.asua.arizona.edu/~bse/

Beta Sigma Psi
April 17, 1925
betasigmapsi.org

Beta Chi Theta
June 2, 1999
betachitheta.com

Gamma Zeta Alpha
December 3, 1987
gammas.org

Gamma Omega Delta
November 20, 1993
gqd1993.org

Delta Epsilon Psi
October 1, 1998
deltaepsilonpsi.org

Delta Kappa Epsilon
June 22, 1844
dke.org

Delta Lambda Phi
October 15, 1986
dlp.org

Delta Sigma Iota
August 15, 2000
deltasigmaiota.org/national

Delta Sigma Phi
December 10, 1899
deltasig.org

Delta Tau Delta
January 1, 1858
deltas.org

Delta Upsilon
November 4, 1834
deltau.org

Delta Phi
November 17, 1827
deltaphifraternity.org

Delta Chi
October 13, 1890
deltachi.org

Delta Psi
January 17, 1847
stanthonyhall.org

Zeta Beta Tau
December 29, 1898
zbt.org

Zeta Phi Rho
August 10, 1995
zetaphirho.com

Zeta Psi
June 1, 1847
zetapsi.org

Theta Delta Chi
October 31, 1847
tdx.org

Theta Delta Sigma
April 15, 2001
thetadeltasigma.org

Theta Xi
April 29, 1864
thetaxi.org

Theta Chi
April 10, 1856
thetachi.org

Iota Nu Delta
February 7, 1994
iotanudelta.org

Iota Phi Theta
September 19, 1963
iotaphitheta.org

Kappa Alpha Order
December 21, 1865
kappaalphaorder.org

Kappa Alpha Society
November 26, 1825
ka.org

Kappa Alpha Psi
January 5, 1911
kappaalphapsi1911.com

Kappa Delta Rho
May 17, 1905
kdr.com

Kappa Delta Phi
April 14, 1900
kappadeltaphi.org

Kappa Sigma
December 10, 1869
kappasigma.org

Lambda Alpha Upsilon
December 10, 1985
lambdas.com

Lambda Theta Phi
December 1, 1975
lambda1975.org

Lambda Sigma Upsilon
April 5, 1979
lsu79.org

 

Lambda Upsilon Lambda
February 19, 1982
launidadlatina.org

Lambda Phi Epsilon
February 25, 1981
lambdaphiepsilon.com

Lambda Chi Alpha
November 2, 1909
lambdachi.org

Nu Alpha Kappa
February 26, 1988
naknet.org

Nu Alpha Phi
March 18, 1994
main.naphi.com

Xi Kappa
February 28, 1998
xikappa.com

Pi Alpha Phi
February 1, 1929

Pi Delta Psi
February 20, 1994
pideltapsi.com

Pi Kappa
Alpha March 1, 1868
pikes.org

Pi Kappa Phi
December 10, 1904
pikapp.org

Pi Lambda Phi
March 21, 1895
pilambdaphi.org

Phi Mu Alpha SINFONIA
October 6, 1898
sinfonia.org

Sigma Alpha Epsilon
March 9, 1856
sae.net

Sigma Alpha Mu
November 26, 1909
sam.org

Sigma Beta Rho
August 16, 1996
sigmabetarho.com

Sigma Delta Alpha
May 5, 1992
sigmadeltaalpha.org

Sigma Lambda Beta
April 4, 1986
sigmalambdabeta.com

Sigma Nu
January 1, 1869
sigmanu.org

Sigma Pi
February 26, 1897
sigmapi.org

Sigma Tau Gamma
June 28, 1920
sigmataugamma.org

Sigma Phi Society
March 4, 1827
sigmaphi.org

Sigma Phi Beta
September 28, 2003
sigmaphibeta.org

Sigma Phi Delta
April 11, 1924
sigmaphidelta.org

Sigma Phi Epsilon
November 1, 1901
sigep.org

Sigma Chi
June 28, 1855
web.sigmachi.org

Tau Delta Phi
June 22, 1910
taudelt.net

Tau Epsilon Phi
October 10, 1910
tep.org

Tau Kappa Epsilon
January 10, 1899
tke.org

Tau Phi Sigma
November 11, 1992
tauphisigma.com

Chi Sigma Tau
September 9, 1999
chisigmatau.webs.com

Chi Phi
December 24, 1824
chiphi.org

Chi Psi
May 20, 1841
chipsi.org

Phi Beta Sigma
January 9, 1914
phibetasigma1914.org

Phi Delta Theta
March 15 + December, 26 1848
phideltatheta.org

Phi Gamma Delta
May 1, 1885
phigam.org

Phi Iota Alpha
December 26, 1931
phiota.info

Phi Kappa Theta
April 29, 1889
phikaps.org

Phi Kappa Sigma
August 16, 1850
pks.org

Phi Kappa Tau
March 17, 1906
phikappatau.org

Phi Kappa Psi
February 19, 1852
phikappapsi.com

Phi Lambda Chi
January 13, 1939
ucaphilamb.com

Phi Mu Delta
March 1, 1918
phimudelta.org

Phi Sigma Kappa
March 15, 1873
phisigmakappa.org

Phi Sigma Nu
February 13, 1996
phisigmanu.com

Phi Sigma Phi
July 30, 1988
phisigmaphi.org

Psi Upsilon
November 24, 1833
psiu.org

Psi Chi Omega
January 24, 1992
psichiomega.us

Omega Delta Phi
November 25, 1987
omegadeltaphi.com

Omega Psi Phi
November 17, 1911

Ceres
October 12, 1985
ceresfraternity.org

Alpha Gamma Delta
May 30, 1904
alphagammadelta.org

Alpha Delta Pi
May 15, 1851
alphadeltapi.org

Alpha Kappa Alpha
January 15, 1908
aka1908.com

Alpha Kappa Delta Phi
February 7, 1990
akdphi.org

Alpha Xi Delta
April 17, 1893
alphaxidelta.org

Alpha Omicron Pi
January 2, 1897
alphaomicronpi.org

Alpha Pi Sigma
March 10, 1990
alphapisigma.org

Alpha Pi Omega
September 1, 1994
alphapiomega.org

Alpha Rho Lambda
March 26, 1993
alpharholambda.net

Alpha Sigma Alpha
November 15, 1901
alphasigmaalpha.org

Alpha Sigma Rho
June 19, 1905
alphasigmarho.net

Alpha Sigma Tau
November 4, 1899
alphasigmatau.org

Alpha Phi
October 10, 1872
alphaphi.org

Alpha Phi Gamma
February 1, 1994
alphaphigamma.org

Alpha Chi Omega
October 15, 1885
alphachiomega.org

Beta Kappa Sigma
June 20, 2001
betakappasigma.net

Gamma Alpha Omega
January 25, 1993
gammaalphaomega.com

Gamma Rho Lambda
August 25, 2003
gammarholambda.org

Gamma Phi Beta
November 11, 1874
gammaphibeta.org

Gamma Phi Omega
April 17, 1991
gammaphiomega.org

Delta Gamma
March 15 + December 25, 1873*
deltagamma.org

Delta Gamma Pi
November 11, 1998
deltagammapi.org/national

Delta Delta Delta
November 28, 1888
tridelta.org

Delta Zeta
October 24, 1902
deltazeta.org

Delta Kappa Delta
October 1, 1999
deltakappadelta.com

Delta Sigma Theta
January 13, 1913
deltasigmatheta.org

Delta Tau Lambda
April 2, 1994
deltataulambda.org

Delta Phi Epsilon
March 17, 1917
dphie.org

Delta Phi Lambda
December 5, 1998
deltaphilambda.org

Delta Phi Omega
December 6, 1998
deltaphiomega.org

Delta Chi Lambda
October 12, 2000
deltachilambda.org

Zeta Sigma Chi
March 3, 1991
zetasigmachi.org

Zeta Tau Alpha
October 15, 1898
zetataualpha.org

Zeta Phi Beta
January 16, 1920
zphib1920.org

Theta Nu Xi
April 11, 1997
thetanuxi.org

Theta Phi Alpha
August 30, 1912
thetaphialpha.org

Kappa Alpha Theta
January 27, 1870
kappaalphatheta.org

Kappa Beta Gamma
January 22, 1917
kappabetagamma.com

Kappa Delta
October 23, 1897
kappadelta.org

Kappa Delta Chi
April 6, 1987
kappadeltachi.org

Kappa Zeta Phi
December, 1960
irvkappas.com

Kappa Kappa Gamma
October 13, 1870
kappa.org

Kappa Phi Gamma
June 20, 1905
kappaphigamma.com

Kappa Phi Lambda
March 9, 1995
kappaphilambda.org

Lambda Theta Alpha
May 28, 1905
lta.orgsync.com

Lambda Theta Nu
March 11, 1986
lambdathetanu.org

Lambda Pi Upsilon
November 6, 1992
lpiu.com

Lambda Pi Chi
April 16, 1988
lambdapichi.org

Pi Beta Phi
April 28, 1867
pibetaphi.org

Sigma Delta Lambda
September 26, 1996
sigmadeltalambda.com

Sigma Delta Tau
March 25, 1917
sigmadeltatau.com

Sigma Gamma Rho
November 12, 1922
sgrho1922.org

Sigma Iota Alpha
September 29, 1990
hernamdad-sia.org

Sigma Kappa
November 9, 1874
sigmakappa.org

Sigma Lambda Alpha
October 5, 1992
sla1992.org

Sigma Lambda Gamma
April 9, 1990
sigmalambdagamma.com

Sigma Lambda Upsilon
December 1, 1987
sigmalambdaupsilon.org

Sigma Omicron Pi
April 13, 1905
sigmaomicronpi.com

Sigma Sigma Rho
December 10, 1998
sigmasigmarho.com

Sigma Sigma Sigma
April 20, 1898
sigmasigmasigma.org

Sigma Phi Omega
May 2, 1905
sigmaphiomega.com

Sigma Psi Zeta
March 23, 1994
sigmapsizeta.org

Sigma Omega Nu
November 6, 1996
sigmaomeganu.org

Phi Lambda Rho
November 13, 1993
philambdarho.org

Phi Mu
March 4, 1852
phimu.org

Phi Sigma Rho
September 24, 1988
phisigmarho.org

Phi Sigma Sigma
November 26, 1913
phisigmasigma.org

Chi Alpha Delta
April 5, 1929
chialphadelta.com

Chi Delta Theta
October 13, 1989
chideltatheta.com

Chi Sigma Phi
March 27, 2000
chisigmaphi.com

Chi Upsilon Sigma
April 29, 1980
justbecus.org

Chi Omega
April 5, 1895
chiomega.com

Omega Phi Beta
March 15, 1989
omegaphibeta.org

+ March 15 is the observed founding date.
* December 25 and 26 are the actual founding dates.