The motto of Phi Iota Alpha is 'Semper Juncti'.
Iota Phi Lambda's motto is 'Upward and Onward in Efficient Service'.
The motto of Iota Phi Theta is 'Not Resting Upon One!'.
Iota Phi Theta was created on 1963-09-19.
Phi Iota Alpha was created on 1931-12-26.
Iota Phi Lambda was created on 1929-06-01.
The Centaur
If you really want to know, ask a member of Iota Phi Theta Fraternity, Inc.
Iota Phi Theta Fraternity, Inc. do not have sisters. They have a female auxilliary called Iota Sweethearts. The only NPHC Fraternity that has constitutionally recognized sisters is Phi Beta Sigma Fraternity, Inc. Their constitutionally recognized siters are Zeta Phi Beta Sorority, Inc.
The motto of Sigma Iota Rho is 'ΣΥΝΕΣΗΣ ΡΩMΗ IΔEOΔI'.
The motto of Delta Iota Kappa is 'Preserve, Protect, Defend'.
Intelligence is the torch of wisdom. I googled it. :0)
Chi Iota Pi's motto is 'Real Women. Real Sisterhood.'.