Page "Venn diagram" Paragraph 13

Venn himself did not use the term " Venn diagram " but kept speaking of " Eulerian Circles ".

In the opening sentence of his 1880 article Venn declared: " Schemes of diagrammatic representation have been so familiarly introduced into logical treatises during the last century or so, that many readers, even those who have made no professional study of logic, may be supposed to be acquainted with the general nation and object of such devices.

Of these schemes one only, viz.

that commonly called ' Eulerian circles ,' has met with any general acceptance ..." The first to use the term " Venn diagram " was Clarence Irving Lewis in 1918, in his book " A Survey of Symbolic Logic ".