Source: Wikipedia
Esperanto was developed in 1877-1885 by L.L. Zamenhof. From its first 10 years of its development, on July 26, 1887 he publicshed the Unua Libro, the first grammar book from Esperanto language instructed in Russia language, then followed by other instructed languages since 1887 to 1889.
Number of speakers are growing in next decades. At the beginning, it only popular in Russian and East Europe kingdoms, then expanded to lalu merambah ke West Europe and then to America. On early decades, the speaker contacted each other by magazines and correspondences. In 1905, the first Universala Esperanto Kongreso conducted in Boulogne-sur-Mer, France; from there, worldwide congresses are always conducted in regular basis unless on World War periods.
‘Esperanto‘ means “someone that hopes” in Esperanto language. That word was being used by Zamenhof as his pseudoname in his first book. Later, this name was referred to called the language itself.
Who is Zamenhof?
L.L. Zamenhof borned in Białystok, Polandia (at that time, was part of Russia). He grown in the middle of poliglot community, that made him thinks a needed to create a single, universal language that solves problems due to many language misunderstanding that leads to conflicts and chaos.
He rejected to offer major languages (France, German, English, Russia) because they were rather difficult to master, and will leverage person that native on their language; he also rejected to offer mature language he mastered, Latin and Greek, because they are far harder to master compared to those major languages.
He began to develop his own language that he crafted himself, that finally he called “Lingvo Internacia“. During his high-school, he published his work for Russian speaker. At the nearly same time, he was getting married and begin his career in medical.