Dr. Esperanto's International Language, Introduction and Complete Grammar by Ludwik L. Zamenhof
In July 1887, Esperanto made its debut as a 40-page pamphlet from Warsaw, published in Russian, Polish, French and German: all written by a Polish eye-doctor under the pen-name of Dr. Esperanto (“one who hopes”). Ludovic Lazarus Zamenhof (1859-1917) ...