# The Longitude Act creates a public prize while Newton sits as PRS expert witness

Date: 1714

## The fact

The Longitude Act of 1714 created a public prize for a practical longitude method. Newton, as PRS, advised Parliament. The Act is Parliament's. Isaac Newton's documented role is: He gave parliamentary advice on longitude as a public scientific officer. Parliament enacted; he did not write the statute as a member in 1714.

## Context

Harrison's clocks are decades later. Flamsteed's Greenwich file is a neighbouring fight. Sharing the statute with Parliament is required. The setting of The Longitude Act creates a public prize while Newton sits as PRS expert witness is the public file around 1714-07-08. Shared offices, unnamed crews, printers, or later editors may appear without becoming this instrument. Driver [industrial-policy-activism](/drivers/industrial-policy-activism) is attached because the significance names a mechanism from this act, not because a standing list needed coverage.

Confidence is stated on the impact path, not hidden in adjectives. Do not award Newton Harrison's later clocks. Do not treat 1714 as his MP seat of 1701. Mixed effects of The Longitude Act creates a public prize while Newton sits as PRS expert witness are separate paths.

## Evidence and sources

RMG independently narrates the 1714 Act. Britannica places Newton's advice. Official carrier: Royal Museums Greenwich — Longitude Act 1714 heritage (https://www.rmg.co.uk/; Royal Museums Greenwich). Independent carrier: Britannica — longitude prize and Newton's advice (https://www.britannica.com/biography/Isaac-Newton; Encyclopaedia Britannica).

Official or archival record: Royal Museums Greenwich — Longitude Act 1714 heritage (https://www.rmg.co.uk/; Royal Museums Greenwich).

## Significance

Improving industrial-navigation path of medium-low weight. Complex. High confidence on the Act; medium on Newton's unique coefficient. The welfare reading on this path is improving.

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

## What is established and what is not

Established: the 1714 Act exists and Newton advised. Not established: that he invented a marine timekeeper. Established: a sourced public record of The Longitude Act creates a public prize while Newton sits as PRS expert witness under 1714-07-08.

Shared responsibility is part of The Longitude Act creates a public prize while Newton sits as PRS expert witness. Naming Isaac Newton does not delete co-authors, institutions, or later transmitters. The lag from 1714-07-08 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.

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

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

## People

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

## Drivers

- Industrial-Policy Activism: https://factrail.ai/drivers/industrial-policy-activism

## Sources

- https://www.britannica.com/biography/Isaac-Newton
- https://www.rmg.co.uk/

## Methodology

https://factrail.ai/methodology

Canonical: https://factrail.ai/facts/newton-longitude-board-context