At the dawn of the 21st century, magic was discovered through the study of inter-dimensional fields. Magic was essentially the energy that flowed through the various parallel universes as the basis for the creation, destruction, fusion and separation of matter and reality.
While all things, living and static, even the air which we breathed, possessed a 'magical energy field' which theoretically decreed the conditions of their very existence in reality, magic wasn't spread out evenly across these dimensions, there were certain areas where magic was highly concentrated in a 'knot' that both pinned that part of reality to its place in the Multiversal web, and connected that dimension to other dimensions, and one such 'knot' was found on earth, in the arctic ice fields.
There, a multinational secret research facility funded by the UN was erected to study the effects of these energies on time, space, organic and synthetic patter, and the perceivable reality itself. In 2024 the first recorded instance of controlled manipulation of these energies occurred when a famed female 'psychic' was brought to the facility and made to perform several tests of her abilities on a willing participant. During a tarot reading it was revealed that the dimensional energies fluctuated and rearranged in an unpredictable matter around both her and the person she was performing the readings on. Later examinations revealed that she had permanently altered the flow of magical energies around the test subject to a degree of 4.6%, over ten times what was thought possible by human intervention and technology at the time. She had, in essence, subjected to change the very basis for the man's existence in reality and time as it was known or, in layman terms, altered his his destiny.
This discovery sparked a boom in the field of magical research and both psychics and tarot readers were gathered from all over the world for these test. It was discovered that, firstly, only select few individuals had the ability to manipulate the dimensional fields, most practitioners of tarot, it would later be found out, could only read and analyze said fields on a rudimentary level through the cards. They could divine the structure of a person's magical field, but could not subject it to change. It was then found out that the tarot system, primitive as it was, was the only divination method to show constant, positive results, and subjects that had a confirmed ability to alter the structure of magical energy fields, were either hampered, or rendered completely unable to do so, when using methods other than tarot. It was consequently deduced that the original practitioners of tarot must have had some, basic, primitive knowledge of the newly re-discovered magic energies, which allowed them to center their craft along the flow of these energies which they somehow perceived through natural attuning.
in 2037, after over a decade of research in the practice of tarot and how it could be utilized to manipulate magical energies, the Universal Magical Research Association,or UMRA (pronounced 'oom-rah'), the multinational organization responsible for the discovery of magical-manipulation techniques and devices, held a worldwide conference where one of their test subjects displayed the ability to cause a single seed to grow into a full-grown tree within the span of a few minutes, another test, one of average physical build, was able to tear apart a solid block of steel, after using magic to weaken it's structure.
Like this, the existence of magic was revealed to the world.
it is now 2063, the arctic research facility has been demolished and re-constructed as a great scientific and academic complex named Arcana Academia, there, people of all ages who poses an affinity for magic are gathered and are educated both in common academic matter, but also in how to manipulate magical energies and cast spells based on a system centering around the 22 major arcana in tarot. It is also the world's seat for magical research and development as several of the top graduates of Arcana Academia are offered jobs either as researchers for UMRA or as teachers in the academy, often times both.