# Andreas Osiander prefixes an unsigned preface to De revolutionibus treating the system as hypothesis

Date: 1543

## The fact

Andreas Osiander prefixed an unsigned preface to De revolutionibus treating the system as hypothesis. The instrument is that unsigned frame, not [Copernicus](/people/nicolaus-copernicus)'s dedication to Paul III. Nicolaus Copernicus's documented role is: Osiander wrote and left unsigned. Copernicus, dying, did not sign that preface. Giese later protested. The book's teaching row remains separate.

## Context

Osiander is the named Lutheran editor at the press. Sharing that opacity with him is required. Petreius printed. The setting of Andreas Osiander prefixes an unsigned preface to De revolutionibus treating the system as hypothesis is the public file around 1543-04-15. Shared offices, unnamed crews, printers, or later editors may appear without becoming this instrument. Driver [personal-data-protection](/drivers/personal-data-protection) is attached because the significance names a mechanism from this act, not because a standing list needed coverage.

## Evidence and sources

Official locator: Britannica — Andreas Osiander at https://www.britannica.com/biography/Andreas-Osiander (Encyclopaedia Britannica). Independent locator: Stanford Encyclopedia of Philosophy — Copernicus, Osiander preface at https://plato.stanford.edu/entries/copernicus/ (Stanford Encyclopedia of Philosophy). Official carrier: Britannica — Andreas Osiander (https://www.britannica.com/biography/Andreas-Osiander; Encyclopaedia Britannica). Independent carrier: Stanford Encyclopedia of Philosophy — Copernicus, Osiander preface (https://plato.stanford.edu/entries/copernicus/; Stanford Encyclopedia of Philosophy).

Official or archival record: Britannica — Andreas Osiander (https://www.britannica.com/biography/Andreas-Osiander; Encyclopaedia Britannica).

## Significance

Worsening path from Andreas Osiander prefixes an unsigned preface to De revolutionibus treating the system as hypothesis on 1543-04-15. An unsigned hypothesis-preface on a signed cosmology is a data-opacity path. The welfare reading on this path is worsening.

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

## What is established and what is not

Established: a sourced public record of Andreas Osiander prefixes an unsigned preface to De revolutionibus treating the system as hypothesis under 1543-04-15 for Nicolaus Copernicus. Established: a sourced public record of Andreas Osiander prefixes an unsigned preface to De revolutionibus treating the system as hypothesis under 1543-04-15.

Confidence is stated on the impact path, not hidden in adjectives. Do not assign the preface to Copernicus. Do not store later Index actions as 1543. Mixed effects of Andreas Osiander prefixes an unsigned preface to De revolutionibus treating the system as hypothesis are separate paths.

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

The attached driver is personal-data-protection. The welfare reading used in this dossier is worsening. That reading is an impact-path choice, not a property stored on the Fact itself.

Shared responsibility is part of Andreas Osiander prefixes an unsigned preface to De revolutionibus treating the system as hypothesis. Naming Nicolaus Copernicus does not delete co-authors, institutions, or later transmitters. The lag from 1543-04-15 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.

## People

- Nicolaus Copernicus: https://factrail.ai/people/nicolaus-copernicus

## Drivers

- Personal-Data Protection: https://factrail.ai/drivers/personal-data-protection

## Sources

- https://www.britannica.com/biography/Andreas-Osiander
- https://plato.stanford.edu/entries/copernicus/

## Methodology

https://factrail.ai/methodology

Canonical: https://factrail.ai/facts/cp-osiander