A is for Atavachron. Temporal portal.
B is for Berengaria VII, known to human explorers as early as the mid-22nd century.
C is for Camaro. Tom Paris' holographic hotrod.
D is for Deltan oaths of celibacy.
E is for Ezri Dax.
F is for Fan Dancing. Uhura was quite good at it.
G is for Green Orion Animal Women. T'Pol should have gone undercover as one.
H is for Humanoid life forms.
I is for Isis the cat.
J is for Jupiter Station.
K is for Kelvin, USS Kelvin. The ship was doomed because it only had one warp nacelle.
L is for Lantree, another doomed Federation starship.