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Esperanto - Wikipedia
Esperanto language and alphabet - Omniglot
What Is Esperanto, And Who Speaks It? - Babbel.com
Esperanto - Simple English Wikipedia, the free encyclopedia
Home - Esperanto
Esperanto | International, Constructed & Artificial | Britannica
What Is Esperanto? An In-depth Exploration
About Esperanto - Esperanto-USA
Introducing Esperanto - Esperanto House
An Introduction to the Esperanto Language and History