Akashic records have existed from the beginning of time. Even though the name is derived from Sanskrit these are recognized and interpreted by different names across different cultures and belief systems.
The Akashic Records are the energetic records of all souls about their past lives, the present lives, and possible future lives. Each soul has its Akashic Records, like a series of books with each book representing one lifetime. Akashic records exist in the higher realms of Consciousness in Akasha above the astral plane and are guarded by the powerful beings of light. Once you understand how to access Akashic records and interpret the energy, you can find out information about any of these states. This is particularly useful for accessinf information in your past lives. These records are available to anyone at any time. There are number of ways you can choose to get these records.
In simple language it would be fair to call Akashic records a vibrational filing system where every thought, word, emotion, action generated by soul experience since its beginning is recorded which translates directly to past, present and future possibilities.