Around 200 artificial languages have been created since the 17th century. The first were invented by scholars for communication among philosophers. Later ones were developed by less scholarly men for trade, commerce and international communication. They include 'Interlingua' (a mixture of Latin and Romance with Chinese-like sentence structure), 'Ido', 'Tutonish' (a simplified blend of Anglo-Saxon English and German) and the more commonly-known 'Esperanto', invented by Ludwig Zamenhof, a Jewish ophthalmologist from Poland, in 1887.

Esperanto is a spoken and written blend of Latin, English, German and Romance elements and literally means "one who hopes". Today, Esperanto is widely spoken by approximately 2 million people across the world.