AlemaniaGermany.Fenómeno celeste · NúrembergCelestial Phenomenon · Nuremberg

The account comes from a broadsheet (Flugblatt) printed in Nuremberg by Hans Glaser —block-cutter, printer and publisher of the city— in 1561. The document, measuring about 26 by 38 centimetres and combining a woodcut with an explanatory text, is held today in the prints and drawings collection of the Zentralbibliothek in Zurich. According to the text, the event occurred around dawn on 14 April 1561, between four and five in the morning, and was witnessed by 'many men and women' of the city.

The description is vivid and concrete. Above the rising sun appeared numerous objects of various shapes: blood-red, bluish and black spheres or globes; long cylinders from which, in turn, smaller spheres seemed to emerge; crosses, some with globes on their arms; and two large 'crescents' or half-moons. These objects moved erratically and, according to the woodcut and text, seemed to engage in combat with one another: they collided, chased each other and, exhausted, fell to earth wrapped in smoke and fire, where they were consumed. After the episode, the text mentions the appearance of a large dark shape resembling a black spear or point. Glaser read the whole spectacle providentially: as a divine warning calling the population to repentance.

The Nuremberg document is not isolated in its era. Barely five years later, in 1566, another broadsheet described a similar phenomenon over Basel (Switzerland), with large black spheres crossing the sky before the sun. These sheets belonged to a flourishing editorial genre after the printing press: illustrated news of celestial prodigies, comets, eclipses and 'signs' sold at fairs and read as omens amid intense religious anxiety, in the thick of the Reformation and Counter-Reformation.

The source, it should be stressed, is a single document of popular, propagandistic nature, not an instrumental record or official report. The woodcut was rediscovered by modern audiences when Carl Jung reproduced and discussed it in his 1958 book 'Flying Saucers: A Modern Myth of Things Seen in the Skies', where he treated it not as proof of craft but as psychological material: the projection of the era's martial and religious imagery onto a real atmospheric phenomenon. That remains, to this day, the dominant reading among historians.

Núremberg 1561 importa al corpus por una razón distinta de la mayoría de los casos: no como evidencia de un objeto, sino como el documento histórico que ancla la profundidad temporal del fenómeno-relato. Mucho antes de la era de los radares y las cámaras, comunidades enteras describían y publicaban observaciones de luces y formas en el cielo organizadas como un 'evento' significativo. El caso es, en este sentido, un control historiográfico: muestra que la percepción de prodigios aéreos y su transformación en narrativa de advertencia es muy anterior a la cultura ovni del siglo XX, lo que debilita cualquier tesis de que el fenómeno sea un mero artefacto de la imaginación moderna.

Pero precisamente por su antigüedad y por descansar en un único documento popular, la honestidad analítica obliga a cargar su posterior abrumadoramente sobre la narrativa mundano/natural. Las explicaciones más sólidas son ópticas atmosféricas —parhelios (perros de sol), halos solares y otros efectos de refracción en cristales de hielo al amanecer—, que producen arcos, cruces, 'soles' múltiples y crecientes luminosos exactamente del tipo que el grabado estiliza; a ello se suma la capa interpretativa de Glaser, que vertió imaginería de batalla y simbolismo religioso sobre lo observado, y el incentivo comercial de una hoja volante que se vendía mejor cuanto más portentosa. La lectura de Jung —proyección psicológica sobre un fenómeno real— sigue siendo la más económica. La pequeña masa que el caso deja a la indeterminación reconoce que no podemos auditar a testigos de hace casi cinco siglos; no que haya base para inferir tecnología. Su lugar en el corpus es el de testigo de la longue durée, no el de prueba.

Nuremberg 1561 matters to the corpus for a reason different from most cases: not as evidence of an object, but as the historical document that anchors the temporal depth of the phenomenon-as-account. Long before the age of radar and cameras, entire communities described and published observations of lights and shapes in the sky organized as a meaningful 'event'. The case is, in this sense, a historiographic control: it shows that the perception of aerial prodigies and their transformation into a warning narrative long predates 20th-century UFO culture, which weakens any thesis that the phenomenon is a mere artifact of modern imagination.

But precisely because of its antiquity and its reliance on a single popular document, analytical honesty requires loading its posterior overwhelmingly onto the mundane/natural narrative. The strongest explanations are atmospheric optics —parhelia (sun dogs), solar halos and other refraction effects in ice crystals at dawn— which produce arcs, crosses, multiple 'suns' and luminous crescents exactly of the kind the woodcut stylizes; added to that is Glaser's interpretive layer, which poured battle imagery and religious symbolism over what was observed, and the commercial incentive of a broadsheet that sold better the more portentous it was. Jung's reading —psychological projection onto a real phenomenon— remains the most economical. The small mass the case leaves to indeterminacy acknowledges that we cannot audit witnesses from almost five centuries ago; not that there is a basis to infer technology. Its place in the corpus is as a witness to the longue durée, not as proof.