# History of Personal Knowledge Management Notes based on a presentation by [[Ivo Velitchkov]] - Commonplace books - World -> Knowledge -> Index - Different indexing systems were developed - Collections of thoughts, quotes, summaries, prayers, proverbs, tables of weights and measures, calculations, etc - Separate cards - Bound books evolved to Separate slips - Gave more freedom to rearrange - Possibility to grow from different places - Conrad Gessner (1516-1565), Swiss Astronomer - Thomas Harrison (1595-1662), Invented a device (cabinet with cards) - Vincent Placcius (1642-1699) - Carl Linnaeus (1707-1778) - Zettelkasten - Storage - Structure - Meaning - Storage, structure and meaning, bringing new capabilities - Links and backlinks - _Every note is only an element which receives its quality only from the network of links and back-links within the system._ - Niklas Luhmann's - 45 years (1952 to 1997) - 90K cards - 50K relations - 3.2K keywords - 1464 works counted - 70 books - 40 articles - Personal Knowledge Graphs - Data - Applications ## First mentions of Knowledge Management May have been American educator [[Nicholas L. Henry]] in a 1974 journal article called "Knowledge Management: A New Concern for Public Administration": https://www.jstor.org/stable/974902