Final answer:
The full first name of Al Capone was Alphonse. He led an organized crime syndicate known as the Chicago Outfit during the Prohibition Era, earning over $100 million annually through various illegal activities.
Step-by-step explanation:
The full first name of the 1920s crime boss known as Al Capone was Alphonse. Capone, also known as "Scarface", was a central figure during the Prohibition Era, heading an organized crime syndicate in Chicago known as the Chicago Outfit or Chicago mafia. His extensive criminal operation included illegal activities such as bootlegging, prostitution, gambling, loan sharking, and murder. The organization was remarkably successful financially, netting more than $100 million annually. Capone's ability to maintain control and launder his earnings through legitimate businesses, while also offering charitable contributions and bribes to law enforcement, earned him a complicated legacy, often compared to that of a modern-day Robin Hood.