Doctor Zamenhof grew up in Bialystok, in what was then part of the Russian Empire, but is now Poland. Growing up, he saw the differences and conflicts between the different linguistic groups living there: Yiddish, Polish, German, and Russian. As a boy, he believed that if people could better understand each other, there would be less conflict in the world. To that end, he devoted himself to creating a simple, easy-to-learn language that everyone could learn as a second language for international communication. From this was born Esperanto.
Its official name is la internacia lingvo, “the international language,” but it is far better known as Esperanto, because when he first proposed the idea, Zamenhof called himself Doktoro Esperanto, meaning “The doctor who hopes.” Today, it is the most successful constructed language, with around one million speakers worldwide. As a language, it is incredibly simple. It can be learned in less than a tenth of the time of organic language, and has its own literature and culture. I truly hope that in the future, more of us learn to communicate with each other. If you can, learn a new language and speak to new human beings.