My baby slept 5 hours in her crib!

I know a lot of people here have babies who sleep independently. My daughter is not one of these babies lol. She only slept on me or my husband the first 6 weeks-- someone had to be holding her or she would scream. The last 3 nights she spent in her crib and last night she slept a stretch from 11-4. I fed her and shes asleep in her crib again. I didn't think this was even possible