# Bruno publishes De umbris idearum in Paris

Date: 1582

## The fact

In 1582 [Bruno](/people/giordano-bruno) published De umbris idearum in Paris, a Latin art-of-memory treatise dedicated in the Henri III orbit, turning Dominican mnemonic skill into a public educational technique strangers could buy. It is not the Italian London dialogues of 1584, not a witchcraft indictment, and not a later self-help memory course. He wrote the wheels and shadows of ideas; Paris printers manufactured. The row stores one teaching object.

## Context

Renaissance memory was both school-skill and occult-adjacent. A later trial that smelled magic in seals and wheels is a different instrument. Do not merge with 1584 Cena. Do not treat John Dee’s English magic as this Paris book, though Dee is a related influence-neighbour in the London years. Henri III’s curiosity is patronage colour, not co-authorship. A book that can be taught as loci and as talismans still has a 1582 colophon as education-access first. Henri III’s curiosity is patronage colour, not co-authorship; John Dee is a later English neighbour, not this Paris plate.

Later competitions, monuments, translations, UNESCO listings, museums, and adaptations are not converted into extra lifetime acts.

## Evidence and sources

BnF data identifies Bruno’s Paris printed works including the 1582 memory titles. SEP independently dates De umbris idearum to Paris 1582 and treats the mnemonic works as central public teaching. Official: https://data.bnf.fr/en/11894221/giordano_bruno/. Independent: https://plato.stanford.edu/entries/bruno/. The records establish 1582 print. They do not establish a unique later memory-course series. A contradictory first-edition year would change the row; a later mnemonics app would not; 1584 Italian dialogues are not this Latin memory book. A contradictory first-edition year would change the row.

Official or archival record: BnF data — Giordano Bruno (https://data.bnf.fr/en/11894221/giordano_bruno/; Bibliothèque nationale de France).

## Significance

Improving education path: a printed mnemonic school. High confidence on 1582. Modest weight. Magic-claim worsening is a different path. Trial and execution are later legal harms done to him. Do not invent a unique modern learning-app coefficient.

Confidence is stated on the impact path, not hidden in adjectives. De umbris is not the 1600 pyre and not a later stage-magic manual. Mixed effects of Bruno publishes De umbris idearum in Paris are separate paths.

## What is established and what is not

Established: Bruno published De umbris idearum in Paris in 1582. Not established: that the book is only a grimoire, or that 1584 Italian dialogues are this title. A showing of a different first year would change the row.

Shared responsibility is part of Bruno publishes De umbris idearum in Paris. Naming Giordano Bruno does not delete co-authors, institutions, or later transmitters. The lag from 1582-01-01 to any measured indicator is not treated as zero. Alternative explanations — weather, other armies, later statutes, or independent cultural change — remain live where the sources do not close them.

The attached driver is edu-[digital-learning-access](/drivers/edu-digital-learning-access). The welfare reading used in this dossier is improving. That reading is an impact-path choice, not a property stored on the Fact itself.

If a number is not in the two records named above, it is not supplied here.

## People

- Giordano Bruno: https://factrail.ai/people/giordano-bruno

## Drivers

- Digital Learning Access: https://factrail.ai/drivers/edu-digital-learning-access

## Sources

- https://plato.stanford.edu/entries/bruno/
- https://data.bnf.fr/en/11894221/giordano_bruno/

## Methodology

https://factrail.ai/methodology

Canonical: https://factrail.ai/facts/br-de-umbris-1582