Esperanto flag

Since the earliest days of Esperanto, the colour green has been used as a symbol of mutual recognition, and it appears prominently in all Esperanto symbols.

The Verda Stelo (Esperanto: Green Star) was first proposed in an 1892 article in La Esperantisto for use as a symbol of mutual recognition among esperantists.

In a letter to The British Esperantist in 1911, L. L. Zamenhof, the creator of Esperanto, wrote: "It seems to me, that my attention was drawn to the color green by Mr. [R. H.] Geoghegan and from that time I began to publish all of my works with green covers . . . Looking at one of my pamphlets that I had entirely by chance printed with a green cover, he pointed out that this was the color of his homeland, Ireland; at that time it came to me, that we could certainly look at that color as a symbol of HOPE. About the five-pointed star, it seems to me, that at first Mr. de Beaufront had it imprinted on his grammar [of Esperanto]. I liked that and I adopted it as a symbol. Afterward by association of ideas, the star appeared with a green color."

The Esperanto flag is composed of a green background with a white square in the upper lefthand corner, which in turn contains a green star. The green field symbolizes hope, the white symbolizes peace and neutrality, and the five-pointed star represents the five continents (Europe, America, Asia, Oceania, Africa). The flag was created by the Esperanto Club of Boulogne-sur-Mer, initially for their own use, but was adopted as the flag of the worldwide Esperanto movement by a decision of the first Universal Congress of Esperanto, which took place in 1905 in that town.

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