I don't get this...
 

I haven't been to this site in 3 years or so and it seems I have all four evolving items in my inventory?
This is the first day that I'm back. I don't know how they got there or when they first appeared really, where they free for all users or something?

Ah, yeah, each user got one each of all the EVIs.

EDIT: Gifted, I mean. I think there was also the option to buy more.