The magazine was founded by André Bloc et Marcel Eugène Cahen in 1930 at the beginning of the recession in Europe.

[5] Pierre Vago, a Hungarian, joined in the 1930s and was influential in developing the magazine's network of international correspondents.

[5] The first international trip, open to architects and architecture enthusiasts who showed interest, was to the Soviet Union in 1931.

[5] During these trips, there were days of discussion to facilitate ideas; they were called Rencontres Internationales des Architects (RIA) and were organized by the magazine's correspondent in each location.

[5] As André Bloc was Jewish, he could no longer manage the magazine during World War II.