Paul Otlet
Paul Marie Ghislain Otlet (; French: [pɔl maʁi ɡilɛ̃ ɔtlɛ]; 23 August 1868 – 10 December 1944) was a Belgian bibliographer, lawyer, and peace activist, and a key figure in documentation science, a precursor to information science. Otlet created the Universal Decimal Classification, which would later become a faceted classification.