Short answers, pulled from the story.
Benito Mussolini founded the Fasces of Revolutionary Action in 1915. This group emerged from a synthesis of ultranationalism and national syndicalism during a time of intense social unrest.
The March on Rome took place between October 27 and 31 in 1922. King Victor Emmanuel III withdrew support from Prime Minister Luigi Facta on October 28 appointing Benito Mussolini as the sixth Prime Minister of Italy.
Fascist Italy claimed territories including Dalmatia Slovenia Albania Malta Corfu Corsica Nice Savoy Ticino Graubünden and parts of North Africa as its Fourth Shore. In January 1939 Italy annexed Libyan territories Tripoli Misurata Benghazi and Derna becoming integral parts of metropolitan Italy.
The Manifesto of Race published July 14 in 1938 paved way for enactment of Racial Laws enforcing discrimination persecution against Italian Jews. Leading party members Dino Grandi Italo Balbo reportedly opposed these laws with Balbo regarding antisemitism having nothing to do with fascism.
By 1938 a quarter million Ethiopians had died following the war involving gassings concentration camps starvation and disease. Deaths reached one-tenth of Libya's population during the fascist era involving gassings concentration camps starvation and disease.
Mussolini concluded unresolved Church State conflict Roman Question on the 29th of February 1929 Lateran Treaty establishing Vatican City microstate Rome. Papacy recognized state Italy exchange diplomatic recognition Vatican City introducing religious education all state funded schools shifting fifty million pounds sterling Swiss company Profima SA.