Blavatsky
Original sense
Blavatsky did not use the phrase ‘Akashic Records.’ She wrote of ‘indestructible tablets of the astral light’ that register thought and deed, past and future — a memory of nature, readable only by a trained seer, and easily confused with imagination. The record is impersonal, not a soul’s private cloud folder.
The ‘tablet of the astral light’… is the universal picture-gallery, on whose canvases are stored the pictures of every thought, word, and deed.
Alfred Percy Sinnett and, more decisively, C. W. Leadbeater (Clairvoyance, 1899) named and popularized ‘akashic records.’ Rudolf Steiner’s Akasha Chronicle and Edgar Cayce’s readings then carried the idea into the twentieth century.