"definite grammatical article whose object is presupposed"
1881, Chautauqua Institution, Chautauqua Literary and Scientific Circle, The Chautauquan, volume 1, M. Bailey, page 35:
In this course, as the constructed language is to be the direct object of study, books are introduced and the pupils are trained to read.
1934 October, “Esperanto — A Tongue All Men Can Easily Learn”, in The Rotarian, volume 45, Rotary International, ISSN0035-838X, page 48:
Furthermore, by learning difficult foreign languages, the pupil is overburdened in contrast to the ease with which he could acquire Esperanto.
1966, George Alan Connor, Esperanto, the world interlanguage, T. Yoseloff, page 116:
A helpful booklet for philatelists is the Filatela terminaro, by Herbert M. Scott, 3rd edition published by the Universal Esperanto Association in 1945.
1994, John Edwards, John R. Edwards, Multilingualism, Routledge, ↑ISBN, page 45:
There is little doubt that, foremost among constructed languages though it is, Esperanto has not — particularly in recent times — captured a sufficient amount of general attention to become the functioning worldwide auxiliary its proponents wish.
2003, Janis Bubenko, John Impagliazzo, Arne Sølvenberg, History of Nordic computing: IFIP WG9.7 First Working Conference on the History of Nordic Computing, シュプリンガー・ジャパン株式会社, ↑ISBN, page 297:
The instructions to a computer appear in lexical forms of some artificial, formally and carefully constructed language, a language never spoken, only written by a programmer, and read by him and the computer.