After birth, a baby's development is rapid and remarkable. Here's a breakdown of the milestones and developments that typically occur during the first year: Physical Development 1. *Lifting head while on stomach*: By 1-2 months 2. *Rolling over*: By 2-4 months 3. *Reaching and grabbing*: By 4-6 months 4. *Sitting up*: By 6-7 months 5. *Crawling*: By 7-10 months 6. *Standing*: By 9-12 months 7. *Walking*: By 12-14 months Cognitive Development 1. *Recognizing familiar faces*: By 1-2 months 2. *Imi