This document outlines common physical developmental milestones for children from birth to 8 years old. Key milestones include babies learning to lift their head and control their body at 3 months, sitting up without support at 6 months, crawling and pulling themselves up at 9 months, walking without assistance at 12 months, running at 2 years old, and developing finer motor skills like writing and drawing between ages 5-8 years old.