Esperanto is a neutral, international language. It does not belong to any country or ethnic group.
The basic rules and words of Esperanto were proposed by L. L. Zamenhof at the end of the 19th century. Within a few years, people started learning it and formed a worldwide community. Since then, Esperanto has been in use (and freely evolving) just like any other language.
The German courses are developed by The Foreign Service Institute of the United States Government - and released to the public domain. http://fsi-language-courses.org/Content.php
This guide explains Japanese grammar in a systematic step-by-step process and is released under the Creative Commons License. It was created as a resource for those who want to learn Japanese grammar in a rational, intuitive way that makes sense in Japanese. The explanations are focused on how to make sense of the grammar not from English but from a Japanese point of view. To learn more about this guide, go to the introduction page and start learning this intriguing and unique language!