The Ancient Ones were some of the longest known celestials. Some believed that they might have even been the first, but no one knew for sure, but everyone knew their name and who they were regardless. What they were sure about, was that they had created the celestial space along with the celestial system and the order the celestials followed to this day.
Whether there were those that existed before them, wasn't an important matter, just the fact that, they were the ones who ruled currently.
The Ancient Ones could only do this in the first place if they had great power, a way to continue raising their condition, and the ability to stay on top. In many ways some might have even said they were obsessed with their positions.
Others believed that it was their condition that forced them to do such things. The universe had given them a condition that made them take such a position. However, before, the celestials weren't called celestials.
