[1] Toussaint is recognized for his contributions to historical methodology and for his writings that helped frame the understanding of Mexican history in a more critical light.

In 1935 he founded the Art Laboratory of the National Autonomous University of Mexico, now called the Institute of Aesthetic Research, and directed it from 1938 until his death in 1955.

[2] Between 1945 and 1954, he directed the Department of colonial monuments of México, dependant of the Instituto Nacional de Antropología e Historia.

Toussaint traveled to the Art History Congress celebrated in Venice, Italy in 1955.

[2] In 1953, his alma mater the National Autonomous University of Mexico, gave him the doctoral degree honoris causa.