''...Two years before I had discovered, in a volume of a certain pirated encyclopedia, a superficial description of a nonexistent country; now chance afforded me something more precious and arduous. Now I held in my hands a vast methodical fragment of an unknown planet's entire history, with its architecture and its playing cards, with the dread of its mythologies and the murmur of its languages, with its emperors and its seas, with its minerals and its birds and its fish, with its algebra and its fire, with its theological and metaphysical controversy. And all of it articulated, coherent, with no visible doctrinal intent or tone of parody. ''
A First Encyclopedia of Tlön. Vol. XI. Jorge Luis Borges
Tlon is run by Francisco Morales, researcher in physics at the INFN section of the University of Rome "Tor Vergata". The site collects a personal choice of contents of any kind. It borrows the name, motivation and its starting point from Tlon, Uqbar Orbis Tertius, a fiction story by Borges. Tlon is, in the words of Borges, a vast methodical fragment of an unknown planet's entire history, the volume XI of its encyclopaedia. These pages are also arbitrary, in their order and logic.