O Tannenbaum
During 1908, Dr. Molly proposed making Neutral Moresnet the world's first Esperanto‑speaking state, named ("friendship-place"). The proposed national anthem was an Esperanto march of the same name, set to the tune of "O Tannenbaum". A number of residents learned Esperanto and a rally was held in Kelmis to endorse the idea of on 13 August 1908, and a coat of arms was publicized. The World Congress of Esperanto, meeting in Dresden, even declared Neutral Moresnet the world capital of the Esperanto community.