Do you Greet nonmuslims on their festivals?

Re: Do you Greet nonmuslims on their festivals?

Islam teaches that its the only right religion, and groups people into believers and non-believers based on whether they follow Islam or not. Maybe someone more familiar with the history of Islam could correct me, but I am guessing this goes back to when Islam started and the desire was to increase the followers of Islam - the easiest way to do it was to preach that this is the only true religion.