Paris Métro Line 7

• 5 November 1910: Line 7 was opened linking Opéra to Porte de la Villette.
• 18 January 1911: A new branch was opened from Louis Blanc to Pré-Saint-Gervais.
• 1 July 1916: The line was extended in the south from Opéra to Palais Royal.
• 16 April 1926: The line was extended from Palais Royal to Pont Marie.
• 15 February 1930: While a tunnel was being built on line 7 to cross the River Seine, a new section between Place Monge and Place d'Italie was opened and temporarily operated as part of Line 10.
• 3 June 1930: The line was extended from Pont Marie to Pont de Sully.
• 7 March 1930: That section temporarily operating as part of Line 10 was extended from Place d'Italie to Porte de Choisy.
• 26 April 1931: The section between Pont de Sully and Place Monge was opened. The section between Place Monge and Porte de Choisy was transferred to Line 7 and it was extended to Porte d'Ivry simultaneously.
• 1 May 1946: The line was extended from Porte d'Ivry to Mairie d'Ivry.
• 1967: Because of a lack of traffic, the northern branch of the line 7 between Louis Blanc and Pré-Saint-Gervais became a new independent line known as Line 7bis.
• 4 October 1979: The line was extended to the north from Porte de la Villette to Fort d'Aubervilliers.
• 10 December 1982: A new branch was opened to the south from Maison Blanche to Le Kremlin-Bicêtre.
• 28 February 1985 : The line was extended from Le Kremlin-Bicêtre to Villejuif Louis Aragon.
• 6 May 1987: The line was extended from Fort d'Aubervilliers to La Courneuve – 8 mai 1945.

• An extension of Line 7 from La Courneuve to Le Bourget may be considered in the future.
• The southern fork of the line from Maison Blanche to Villejuif – Louis Aragon may be taken over by line 14 in the future.
• Line 7bis, the branch line of line 7, may be merged with line 3bis to form a new line, with its western terminus at Château-Landon on line 7.

Line 7 runs for 18.6 km (12 mi) completely underground, stopping at 38 stations. Southbound trains terminate alternately at Villejuif - Louis Aragon and Mairie d'Ivry, diverging at Maison Blanche. Late at night, through trains only operate to Mairie d'Ivry; a shuttle train to Villejuif originates at Maison Blanche.

In the north, the line begins at La Courneuve in the department of Seine-Saint-Denis at the intersection of National Routes 2 and 186. La Courneuve station acts as a transfer between the Métro and Paris' fragmented, suburban tramway system, with a station on Paris Tramway Line 1 (T1). Unlike most stations in Paris, there are three tracks, the central one used for departures and arrivals.

Running below National Route 2 (RN2), the line heads to the south-west, entering Paris in two single-line tunnels so as to avoid a now-unused terminal loop at Porte de la Villette. It then descends a 4% grade below Canal Saint-Denis and then climbs back up to stop at Corentin Cariou. Two stations beyond, Line 7 reaches Stalingrad, an important transfer point in the Métro system, where the line turns to run below Rue La Fayette.[2]