Get children pages by creation date, not modified date

I'm trying to get the 3 most recent blog posts by creation date with the following
page.find('/blog').children.order('date', 'desc').slice(0, 3)
but if I modify an old post it gets in first place.

Any idea how I can achieve that?

Alright, got it to work with this
{% set posts = page.find('/blog').children.slice(1).slice(-3).reverse() %}

Get the last 3 new posts and reverse them so I can show them from newest to oldest.