Sega
Japanese video game developer and publisher and subsidiary of Sega Sammy Holdings
Sega Corporation is a Japanese video game company and subsidiary of Sega Sammy Holdings headquartered in Tokyo. It produces several multi-million-selling game franchises for arcades and consoles including Sonic the Hedgehog, Angry Birds, Football Manager, Phantasy Star, Puyo Puyo, Super Monkey Ball, Bayonetta, Total War, Virtua Fighter, Megami Tensei, Sakura Wars, Persona and Yakuza. From 1983 until 2001, Sega also developed its own consoles.
Sega was founded by Martin Bromley and Richard Stewart as Nihon Goraku Bussan on June 3, 1960. Shortly after, it acquired the assets of its predecessor, Service Games of Japan. In 1965, it became known as Sega Enterprises, Ltd., after acquiring Rosen Enterprises, an importer of coin-operated games. Sega developed its first coin-operated game, Periscope, in 1966. Sega was sold to Gulf and Western Industries in 1969. Following a downturn in the arcade business in the early 1980s, Sega began to develop video game consoles, starting with the SG-1000 and Master System, but struggled against competitors such as the Nintendo Entertainment System. In 1984, Sega executives David Rosen and Hayao Nakayama led a management buyout, with backing from CSK Corporation.
Begin with the source’s own compact description: “Sega” is japanese video game developer and publisher and subsidiary of Sega Sammy Holdings. The dossier treats that line as a proposition to test through Sega, Japanese and video, not as a finished interpretation.
Why this record matters
The phrase “japanese video game developer and publisher and subsidiary of Sega Sammy Holdings” 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.
Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated Sep 24, 2026. The linked authority identifier is Q122741. VIAF identifies the subject as 143387238. The Library of Congress control number is nr93024802. 3 of 9 selected statements include explicit references; 5 carry qualifiers and 1 use preferred rank. The first chronological checks are 1983, 2001, 1960 and 1965.
A concise general-reference account can conceal disagreements about scope, terminology or the weight assigned to individual sources. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
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- Subject orientation
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- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
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This entry incorporates text from “Sega” 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.