LO (almost 21 months) has gotten pretty good at the alphabet. She can point out the alphabet with a few exceptions (X, Q, W, N) and repeat back what i recite (with a few exceptions like C, L Q and W).
I haven't been able to find much on this, as a lot of people say learning the alphabet isn't really a milestone. When did your LO say the alphabet or recite it on their own?