Mobility begins

Ariel rolled over for the first time Monday (4/5) afternoon.  It was about 1:15 or so.  I had laid her down on her blanket in the front room and went into the kitchen to get something when she started crying her eyes out.  I immediately ran to her (as this isn't like her) and found out the reason she was crying....she was on her tummy and Ariel doesn't like being on her tummy.  As I had placed her down on her back, the only possibility is she rolled her self over.  Yay Ariel!