Cosmos Rossellius (died 1578) was a Florentine Dominican friar who wrote a book about memory.
He gives a Dante-esque description of hell as a memory space system[1] arranged around a well at the top of a flight of steps consisting of the punishments for heretics, Jews, idolators and hypocrites.
In contrast heaven is depicted as the throne of Christ, surrounded by a celestial hierarchy of Apostles, Patriarchs, Prophets, Martyrs, Confessors, virgins, Holy Hebrews and an enormous array of saints.
The five woodcuts contain the earliest known representation of a digital sign language.
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