C430 Posterior Mountain
If you counted the hundreds of years that the Darknorth Sect had existed, then it was probably over eight hundred years.
Back then, the power of the sword sects was still there. Whether it was the Northern Wastelands or the Central Plains, they were both led by the sword sects.
Back then, many sword sects had formed an alliance, with the Darknorth Sword Sect as one of the members