International Conference Held at Washington for the Purpose of Fixing a Prime Meridian and a Universal Day. October, 1884. / Protocols of the Proceedings

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Gutenberg ID

17759

Title

International Conference Held at Washington for the Purpose of Fixing a Prime Meridian and a Universal Day. October, 1884. / Protocols of the Proceedings

Language

en

Book source

Project Gutenberg

Description max 80 words

This historical record documents the 1884 International Meridian Conference in Washington, where global delegates established Greenwich as the prime meridian and standardized time reckoning to unify longitude and timekeeping for international commerce and navigation.

Summary up to 500 words

Held in Washington, D.C., during October and November 1884, the International Meridian Conference convened to resolve critical global discrepancies in longitude measurement and timekeeping. Invited by the United States government under the leadership of Secretary of State Frederick T. Frelinghuysen, diplomats and scientists from twenty nations gathered at the Department of State to establish a universal standard. Rear-Admiral C. R. P. Rodgers of the U.S. Navy presided over the proceedings, which began on October 1, 1884, with the formal election of delegates and the organization of the congress. The conference addressed two primary objectives: selecting a prime meridian to serve as the zero point for longitude and establishing a single standard for global time reckoning. A significant portion of the deliberations focused on the direction in which longitude degrees should be counted. While some delegates, including representatives from Germany and Sweden, argued for counting westward or maintaining separate east/west conventions, others advocated for a continuous count from zero to 360 degrees in one direction. Practical necessities drove the debate; American railway interests strongly opposed any change that would disrupt their existing time zones based on even multiples of fifteen degrees west of Greenwich. Conversely, maritime navigators emphasized the safety benefits of a unified system. After intense discussion, the delegates reached a unanimous consensus. They designated the meridian passing through the Royal Observatory at Greenwich as the common zero of longitude. Furthermore, they resolved to count degrees eastward from this prime meridian up to 360, rather than using separate positive and negative values for east and west longitudes. This decision simplified the calculation of universal time, allowing navigators to simply add local longitude to local time to determine universal time. The conference concluded on November 1, 1884, with the signing of the Final Act. Delegates expressed profound gratitude to the United States for its hospitality and to Admiral Rodgers for his impartial chairmanship. The protocols were signed by the President and Secretaries, formalizing an agreement that would eventually unify global commerce, science, and navigation under a single temporal and geographical framework.

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