Declaration of Boulogne

Declaration of Boulogne
Zamenhof and other attendees leaving the first World Esperanto Congress
Original titleDeklaracio pri la esenco de Esperantismo
Created1905
RatifiedAugust 1905
LocationBoulogne-sur-Mer, France
Author(s)L. L. Zamenhof
PurposeEstablishing the Esperanto movement
Full text
Boulogne Declaration at Wikisource

The Declaration on the Essence of Esperantism (Esperanto: Deklaracio pri la esenco de Esperantismo), commonly referred to as the Declaration of Boulogne (Bulonja Deklaracio), is a historic document that establishes several important premises for the Esperanto movement. The Declaration was written by L. L. Zamenhof and ratified in 1905 by the attendees of the first World Esperanto Congress, held in Boulogne-sur-Mer, France.