Can I have two posts pages?

Hi guys,
I’m a beginner, forgive me for incorrect expressions, please.
My problem is this: I’m writing a travel blog. I would like to write also some post about the trips I have done before the blog. Because these posts are different than the future posts (about future trips), I would like to have a subpage (called “before” for example) to publish just these past trips. I would like that this “before” page will be a subpage of “blog” page. The future trips will be published in the “blog” page instead.
Is that possible?
I hope my explanation is clear.

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