When did they become not babies anymore?

This time last year, I had twin 7 month babies.

This was E last year, with her chubby cheeks.

This was C with his sly grin.

His first Thanksgiving 

And hers. 

Two twin babies, barely sitting by themselves.

Unable to crawl, let alone walk.

This was last year. 

Now we have toddlers.

This is C now , climbing on everything and never sitting still.

Now this is E, walking and obsessed with babies and phones.

These are my babies 

When did they become little people?

Where did the last year go?

When did these tiny humans take over?

Where did my babies go?