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Arpad Elo

Hungarian American physicists, developer of the Elo rating

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General referenceInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionAug 31, 2026
Entity authorityQ326557 ↗
Source-derived summary

Arpad Emmerich Elo (né Élő Árpád Imre; August 25, 1903 – November 5, 1992) was a Hungarian-American physics professor who created the Elo rating system for two-player games such as chess.

Born in Egyházaskesző, Kingdom of Hungary, he moved to the United States with his parents in 1913. He obtained his BSc and MSc degrees in 1925 and 1928 from the University of Chicago, where he also played chess in the Chicago Chess League. From 1926 until his retirement in 1969, Elo was a physics instructor at Marquette University in Milwaukee. By the 1930s, he was the strongest chess player in Milwaukee, at the time one of the nation's leading chess cities. He won the Wisconsin State Championship eight times, and was the 11th person inducted into the World Chess Hall of Fame. He also served as the president of American Chess Federation (predecessor of United States Chess Federation) for terms 1935 and 1936. Elo died of a heart attack at his home in Brookfield, Wisconsin, on November 5, 1992.

Elo rating system

Elo is known for his chess player rating system. The original player rating system was developed in 1950 by Kenneth Harkness, the Business Manager of the United States Chess Federation.

Editorial summary

Begin with the source’s own compact description: “Arpad Elo” is hungarian American physicists, developer of the Elo rating. The dossier treats that line as a proposition to test through Arpad, Hungarian and American, not as a finished interpretation.

Editorial reviewA practical starting point whose main value is the path it opens into stronger specialist and primary sources. The current lead gives the account dated anchors—1903, 1992, 1913, 1925—that can be checked directly. The linked authority record independently contributes the date 1903-08-25. For this dossier, Arpad, Hungarian and American is the immediate research focus.
Editorial analysis

Why this record matters

The phrase “hungarian American physicists, developer of the Elo rating” supplies a clear boundary for inquiry. It also exposes the unanswered questions: who defined that boundary, when it became stable and which sources sit outside it.

Evidence profile

Vocabulary and entity names are the principal evidence signals here, because they determine the precision of every later search. The source revision retrieved here is dated Aug 31, 2026. The linked authority identifier is Q326557. VIAF identifies the subject as 50484289. The Library of Congress control number is n78053688. 3 of 3 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1903, 1992, 1913 and 1925.

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Source & attribution

This entry incorporates text from “Arpad Elo” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.