Last Updated：2025/12/29
Sentence
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.
Quizzes for review
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.
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