1911: creation of the Hispano-Suiza works in France.

1912: Louis Verdet founds the Société des Moteurs Le Rhône.

1913: Roland Garros makes the first flight across with Mediterranean on a Morane-Saulnier H powered by a 60-hp Gnome Sigma.

1914: Gnome and Le Rhône pool their design and production resources.

1915: Gnome takes over Le Rhône, becoming the Société des Moteurs Gnome et Rhône (January 12).

1915: Hispano-Suiza produces the revolutionary 150-hp V-8 aircraft engine.

1920: Gnome & Rhône start motorcycle production to cope with the drop in aircraft orders.