# Philosophiæ Naturalis Principia Mathematica is published at London

Date: 1687

## The fact

In 1687 Newton's Principia was published at London under the Royal Society's imprimatur, with Halley paying. It is one book. Later editions are later Facts. Isaac Newton's documented role is: He wrote the book. Halley financed and saw it through the press; the Royal Society's imprimatur sat on the title.

## Context

The Society's funds were tied up with Willughby's Historia Piscium. Halley underwrote. Flamsteed supplied some data. Sharing print with Halley and the imprimatur is required. The setting of Philosophiæ Naturalis Principia Mathematica is published at London is the public file around 1687-07-05. Shared offices, unnamed crews, printers, or later editors may appear without becoming this instrument. Driver edu-[digital-learning-access](/drivers/edu-digital-learning-access) is attached because the significance names a mechanism from this act, not because a standing list needed coverage.

Shared responsibility is part of Philosophiæ Naturalis Principia Mathematica is published at London. Naming Isaac Newton does not delete co-authors, institutions, or later transmitters. The lag from 1687-07-05 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.

## Evidence and sources

Gutenberg carries a later English Principia as access, not as 1687 type. SEP and Britannica independently date the 1687 publication. Official carrier: Project Gutenberg — Newton's Principia, Motte translation as public English carrier (https://www.gutenberg.org/ebooks/28233; Project Gutenberg). Independent carrier: Stanford Encyclopedia of Philosophy — Newton's Principia (https://plato.stanford.edu/entries/newton/; Stanford Encyclopedia of Philosophy).

Official or archival record: Project Gutenberg — Newton's Principia, Motte translation as public English carrier (https://www.gutenberg.org/ebooks/28233; Project Gutenberg).

## Significance

Improving education-access path of high weight. Complex: author plus printer-patron. High confidence on the 1687 book. The welfare reading on this path is improving.

## What is established and what is not

Established: Principia was published in 1687. Not established: that every later physics classroom is this event. Established: a sourced public record of Philosophiæ Naturalis Principia Mathematica is published at London under 1687-07-05.

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

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

Confidence is stated on the impact path, not hidden in adjectives. Do not split Book I, II, and III into three Facts. Do not treat 1713 or 1726 as this event. Mixed effects of Philosophiæ Naturalis Principia Mathematica is published at London are separate paths.

The welfare reading used in this dossier is improving. That reading is an impact-path choice, not a property stored on the Fact itself.

## People

- Isaac Newton: https://factrail.ai/people/isaac-newton

## Sources

- https://www.gutenberg.org/ebooks/28233
- https://plato.stanford.edu/entries/newton/

## Methodology

https://factrail.ai/methodology

Canonical: https://factrail.ai/facts/newton-principia-1687