Reputation with unknown civs

[Ronibus Maximus]

I'm on a continent with two other civs. None of us have contact with any of the other five civs. If I commit attrocities (e.g., razing cities or capturing/abandoning cities), will these attrocities affect my reputation with the other five civs that I haven't even met yet? In other words, when I finally do meet them, will I have a bad reputation with them even though they should have had no way of knowing about my past attrocities?

[Catt]

If you completely destroy your neighbors before contact, you should be pristine. If even one unit of a neighbor manages to get contact, all your past deeds will be conveyed to the new world.

Catt