Solution:Esperanto is an International auxiliary language devised by Dr. Ludwik Lejzer Zamenhof. Esperanto was designed as a neutral, easy-to-learn language intended to facilitate international communication and understanding.Zamenhof published the first book describing the language in 1887, under the pseudonym "Doktoro Esperanto" (Doctor Hoper, or literally "Doctor One Who Hopes"). Initially, Zamenhof called the language "Lingvo internacia" (international language), but those who learned it began to call it Esperanto after his pseudonym.
Zamenhof's goal was to create a universal second language that could bridge communication barriers between different ethnic groups and foster world peace. The language was also known as "La Internacia Lingvo" (The International Language).