What is Esperanto and how could it be seen as a reaction to the spread of languages such as English in the colonial era?

Esperanto is the world's most widely spoken constructed international auxiliary language. It is the only such language with a population of native speakers, of which there are perhaps several thousand. Concentration of speakers is highest in Europe, East Asia and South America. Esperanto was created by Polish ophthalmologist L. L. Zamenhof in 1887. It was intended to be a universal second language for international communication. According to Zamenhof, he created the language to reduce the "time and labor we spend in learning foreign tongues" and to foster harmony between people from different countries. If languages were spread in the colonial era, Esperanto might or might not have been create since they could have used other languages in place of it.

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