You can look back on all the amazing things on the baby milestone chart that your child has mastered over the past 12 months — it's quite a lot! (thebump.com)
Its important to use milestone charts as a guideline, rather than a set of rigid rules. (momvelous.com)
Depending on where you look for a developmental milestone chart you will see varying age levels listed for the motor skills you mentioned. (day2dayparenting.com)