It is the youngest language in the world, created by Ludwik Zamenhof, who tried to create an easy and neutral international language. It is not an official language in any country. Its vocabulary is derived from various languages, mainly European, such as Latin, Italian, Spanish, Portuguese, German, and English, and to a lesser extent from Polish, Russian, Greek, and Hebrew. The language has an extensive vocabulary, and its grammar is based on simple rules with no exceptions. The fact that 28 letters of the Latin script are used to write the language and that each letter corresponds to one phoneme is also contributing to its ease of use.