I've not found any complete lists yet. I don't think there are any that are in any way official. Here's the ones I've gotten though, in the order my infant unlocked them:
Fine Motor
Learned to Reach, Learned to Grab, Put Toe in Mouth, Learned to Pincer Grab, Learned to Clap, Learned to Wave
Firsts
First Diaper Blowout, First Bath, Peed on Caregiver, First Bubble Bath, First Visitors, First Baby Food, Slept Through the Night, First Finger Food, First Trip to a Park
Gross Motor
Lifted Head, Rolled Over to Back, Rolled Over to Tummy, Learned to Sit Up, Learned to Creep, Pulled to Stand, Learned to Crawl, Learned to Dance
Life
Born at Home
Social
First Smiled, Learned to Coo, Learned to Laugh, Learned to Babble, Learned to Blow Raspberry, Learned to Blow Kiss, Said First Word, Learned Peek-A-Boo
There are probably more, but this is what I managed to get before my infant aged up (with long lifespan).