Proof
A few years ago, on one fine morning, Daneel and Luther had been sitting in the largest balcony of the Palace of Lanthanor while looking over the army that had been carrying out war exercises.
It had been the time after Daneel had successfully taken control of the Kingdom of the Elves through his manipulation, and at that juncture, he had still been learning about what it meant to be a king.
This was one of the many instances during which his commanders had taken the initiative to help him in the journey. On that morning, Luther had told him a very interesting story.
It was about a conflict that had taken place a thousand years ago between the then Kingdom of Lanthanor, and the Black Raven Kingdom.
It had apparently been a very terse period during which conflicts had been present between each and every member of the Central Continent, but in particular, these two kingdoms which shared borders had been on the brink of war.