Ramon Llull

A medieval philosopher and writer. For more information, see this Wikipedia article:


Llull's wheels, intended as a religious debating tool, are sometimes cited as a memory system, although they were probably more useful to organize a PegSystem than to use as a PegSystem themselves. GiordanoBruno was inspired by the Llullian wheels to combine astrological symbols to create huge lists of loci and actors for his own memory system.