It may actually be @utopian-io. Dunno. I know you know how to find out, though. Those are Steemit accounts, and when you visit their blogs, you will know what they are.

@curie is an invitation only outfit, but despite my not being a member, I have received their upvotes on a post. Over $100 worth.

@steemstem is a science curation group, and it may be that history and the social sciences are relevant to their interests.

@utopian (or @utopian-io) is more of a mystery to me, but I know they seek quality minds, and this post clearly establishes the quality of yours.

I am confident folks in those groups would be as grateful to read it as am I.