Teaching/studies Isidro Fabela received his law degree from the National School of Law at the
National Autonomous University of Mexico () (UNAM) in 1908. Fabela returned to teach at UNAM in 1921, at his alma mater the National Law School, teaching International Public Law. Prior to teaching at UNAM, Fabela was a professor of history at the National Institute in Chihuahua between 1911 and 1913, and a professor at the Literary Institute of Mexico from 1912 to 1913.
During the era of the Mexican Revolution Isidro Fabela worked in various roles of local government, his earliest role is most closely connected to his work as a lawyer, serving as Chief Public Defender for the Federal District (Mexico State) in 1911. In the same year he was elected and secretary general of
Chihuahua where he served until 1913. In 1913 he was elected as and secretary general of Government of the State of
Sonora. From 1912 to 1914 Fabela served as
federal deputy from State of Mexico, he served again in this position from 1922 to 1923. In 1942 Fabela was elected as
Governor of the State of Mexico and served in that capacity until 1945. Fabela resigned the position after grooming Adolfo López Mateos to assume the role, and after being appointed to the position of Judge to the
International Court of Justice.
International roles Isidro Fabela held numerous international positions, the first of such being
Secretary of Foreign Relations for the government of
Venustiano Carranza from 1913 to 1915. From 1937 to 1940 Isidro Fabela was head of the Mexican Delegation to the League of Nations in Geneva. In this capacity, he presented on behalf of the Mexican Foreign Minister Eduardo Hay on March 19, 1938, formulated by him, an official note of protest against the occupation of Austria by the troops of the German Wehrmacht. Mexico was the only country in the world to officially protest against the "connection" designated annexation of Austria before the League of Nations. To commemorate this act, after the war, in the Viennese district of
Donaustadt, a promenade in the UNO-City complex, where the Vienna headquarters of the United Nations is located, was named after him. Fabela is next to
Gilberto Bosques, the savior of numerous Austrian persecuted during the Nazi era, the second Mexican diplomat, to bestow this honor. While in Geneva, Fabela also challenged the ways by which the League principle of non-intervention was being applied in the
Spanish Civil War, arguing that a clear distinction should be made between the perpetrators and victims of aggression, and that the
Spanish Republic deserved international support. After the Second World War, in Mexico while serving as the senator from Mexico State (
Estado de México), Fabela was appointed to the position of
Judge for the
International Court of Justice in 1946; he served in this capacity until 1952.
Writer Isidro Fabela is noted with founding two periodicals, and publishing a variety of books. In 1910, Fabela founded the newspaper and in 1914, the newspaper . He has also published the following books: • (The sadness of love) • (The precursors of the Mexican diplomacy) • (Diplomatic History of the Mexican Revolution) • (Historical Documents of the Mexican Revolution) • (My Memories of the Revolution) ==Legacy==