contact with other civs...

[felagund]

I was recently playing game of the month when I received greetings from 3 other Civs not on my continent. The funny thing was I couldn't see any of their units on the screen (it would probably have to be a galley) for them to contact me. How did these civs contact me?

 

[RegentMan]

Other civilizations that knew you probably sold contacts to those three.