Léopold Leau was a French

French people

The French are a nation that share a common French culture and speak the French language as a mother tongue. Historically, the French population are descended from peoples of Celtic, Latin and Germanic origin, and are today a mixture of several ethnic groups...

 mathematician

Mathematician

A mathematician is a person whose primary area of study is the field of mathematics. Mathematicians are concerned with quantity, structure, space, and change....

, primarily known for his many well-documented ties to international auxiliary language

International auxiliary language

An international auxiliary language or interlanguage is a language meant for communication between people from different nations who do not share a common native language...

s.

The Delegation for the Adoption of an International Auxiliary Language

Delegation for the Adoption of an International Auxiliary Language

The Delegation for the Adoption of an International Auxiliary Language was a body of academics convened in the early part of the twentieth century to decide on the issue of the which international auxiliary language should be chosen for international use...

 was founded on January 7, 1901 on Leau's initiative. He co-wrote with Prof. Louis Couturat

Louis Couturat

Louis Couturat was a French logician, mathematician, philosopher, and linguist.-Life:Born in Ris-Orangis, Essonne, France, he was educated in philosophy and mathematics at the École Normale Supérieure...

 the monumental Histoire de la Langue Universelle (1903) and its supplement Les Nouvelles Langues Internationales (1907).

Along with his collaborator, Louis Couturat

Louis Couturat

Louis Couturat was a French logician, mathematician, philosopher, and linguist.-Life:Born in Ris-Orangis, Essonne, France, he was educated in philosophy and mathematics at the École Normale Supérieure...

, Leau appears as a character in Joseph Skibell

Joseph Skibell

Joseph Skibell is a novelist and essayist living in Atlanta, Georgia.Skibell is the author of three novels, which use elements of history and fantasy:* A Blessing on the Moon * The English Disease...

's 2010 novel, A Curable Romantic.