Latino sine Flexione (or Interlingua) is a language constructed by Giuseppe Peano at the beginning of the last century. This simplified Latin is designed to be an instrument for international cooperation, especially in the academic sphere. (Note that this “Interlingua” is different from the “Interlingua” that was created a few decades after Peano’s work and which is supported by babel-interlingua!) This package provides the necessary translations to use the language within a LaTeX document. It also imports fontenc in order to be able to use ligatures and quotation marks. Finally, it offers a text in Interlingua that can be used as a dummy text: Fundamento de intelligentia. This article by H. Bijlsma was first published in Schola et Vita Anno I (1926).