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Paris Metro Line 12

Subway route in the French capital

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General referenceInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionAug 15, 2026
Entity authorityQ50757 ↗
Source-derived summary

Paris Metro Line 12 (French: Ligne 12 du métro de Paris : initially opened as Ligne A du Nord-Sud (North-South Line A)) is one of the sixteen lines currently open on the Paris Métro. It links Issy-les-Moulineaux, a suburban town southwest of Paris, to Aubervilliers, in the northeast. With around 54 million passengers per year, Line 12 was the twelfth busiest line of the network in 2021. It services several major stops, such as Porte de Versailles, Concorde, Madeleine, and two national railway stations, Gare Montparnasse and Gare Saint-Lazare. The service runs every day of the week, and the line uses MF 67 series trains, the network's standard since the early 1970s.

Line 12 was founded in 1905 as Line A by the Nord-Sud Company, who also built Line 13. It was built between 1905 and 1910, to connect the districts of Montparnasse, in the south, and Montmartre, in the north of the French capital. The first trip, from Porte de Versailles to Notre-Dame-de-Lorette, was on 5 November 1910. The line was the second to be built on the north–south axis of the city, in competition with Line 4 of the Compagnie du chemin de fer métropolitain de Paris (CMP; Paris Metropolitan Railway Company). It was extended bit by bit until 1934 when it reached Mairie d'Issy in the south.

Editorial summary

This brief starts where responsible research should: with the source description of “Paris Metro Line 12” as subway route in the French capital. Everything that follows is an evidence route, not borrowed authority.

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—2021, 1905, 1910, 1934—that can be checked directly. The selected authority fields contribute no independent date. The account is most persuasive where Paris, Metro and Line can be independently traced.
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Why this record matters

The subject matters to the general reference register because the source frames it as subway route in the French capital. Its deeper value depends on whether names, dates, institutions and citations support that framing.

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 15, 2026. The linked authority identifier is Q50757. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 2021, 1905, 1910 and 1934.

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Overview language is designed for orientation and should not be treated as a substitute for the evidence cited beneath it. 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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Source & attribution

This entry incorporates text from “Paris Metro Line 12” 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.