Everyone could tell the grade of these swords from the Sword Intent and spiritual energy on them.
There were so many swords hidden on the Sword Mountain that there were no records of them at all. In addition, the entire mountain was surrounded by Sword Intent. The deeper one went into the mountain, the sharper the Sword Intent was. Ordinary people could not get close to it and could only observe it from the outside.
Therefore, no one knew how many divine weapons there were. Everyone had a vague idea, and there were never any precise records in the books.
In order to stop the war, the Emperor intervened. Countless outstanding people in the world negotiated with the Emperor because of his power. In the end, they reached an agreement and put down the divine weapons. From then on, the world would be at peace.