constructed language

So if the constructed language is machine code, that is very fine, because the syntax (the grammar) is very simple and the meaning of each instruction can be verified …

The first practical constructed language was the south-west German Pastor Schleyer's Volapük from 1879; its complicated grammar and irregular vocabulary made learning difficult, however. The most successful has been Esperanto, devised by the Warsaw ophthalmologist Ludwig Zamenhof in 1887, that today can count some one million speakers.

It has been said that— when I made the observation, that if they were not married they ought to be—I endeavoured to stab their reputation. Now, I'll prove that I endeavoured to do nothing of the sort. … I'll prove it by logic, and I defy all the mathematicians in the habitable globe to known it down. I'll prove it by the regular mathematical construction of the English language, and will any man tell me there's any constructed language in the universe more mathematically regular than that?