A cognitive milestone for Talia -- maybe

Today, when I picked the kids up from day care, Talia informed me: "Eat cake. Happy birthday to you." This was the first time I've heard her tell me, in a declarative way, about something that happened in the past. (There had been a little birthday party for one of the kids in her "class." She couldn't tell me whose birthday it was, but Zeke filled me in on the details.) In fact, I believe it's the first time I've ever heard her use language to describe something that was neither (1) immediately in front of her or (2) something she wanted us to get or do for her. Maybe I'm wrong, but this seems like a major cognitive milestone to me, in terms of how she uses language and how she thinks about events. I don't remember anything quite this dramatic with Zeke.

Here's something else -- two photos, showing Zeke at age 22 months and Talia at age 18 months (a few weeks ago). I think it's pretty striking -- you can really see how much alike they look.