When humanity was still using animal hides, linen, and mud bricks to build its own civilization, Agamotto, the first Sorcerer Supreme, had already traveled to every corner of Earth. In that age filled with strange beasts and superstition, no one could have imagined the price Sorcerer Supreme Agamotto had paid or how many monstrous beasts he had slain. Afterward, Sorcerer Supreme Agamotto led the apprentices he had recruited along the way and built his residence, palace, and dungeons upon the planet's grandest mountain range, then still unnamed as the Himalayan Mountains. He compiled all the wisdom he had recorded in his lifetime into the Book of Vishanti and imprisoned everything the Human Race could not resist within the dungeons.
Afterward, Sorcerer Supreme Agamotto created the Planetary Defense System. On its core instrument, a globe neither of copper nor gold, he marked the three main convergence points of the planet's spiritual veins and over a thousand secondary convergence points. The three primary points would become the three great Sanctums, while the thousand secondary points became magnificent structures built by different civilizations, temples where gods received sacrifices, academies of other magical schools, and more. Whether Athena's temple or the pyramids, whether the city of Uruk or the Kunlun dojo, every one of them stood at a location foreseen by Sorcerer Supreme Agamotto.
This did not mean that every Psionic on Earth drew their spellcasting methods from Sorcerer Supreme Agamotto.
Just as one compiled the zeroes and ones stored in the data of the same computer, Sorcerer Supreme Agamotto invented a programming language to interpret those numbers. Unlike the commonly used programming systems on Earth invented by other Psionics, this language was simply more efficient. Other programming languages existed in this world, and perhaps some were even more efficient, just like mathematics. Thus,