In Chapter 6, the readers receive the full extent of Gatsby’s personal history through Nick. We uncover that James Gatz was his real name and he is from North Dakota. We learn that Dan Cody, who Gatsby described as his best friend, took Gatsby upon his yacht as his assistant and taught him everything he knew. It was he who game Gatsby a new name and a new lifestyle. It was mentioned that Dan Cody attempted to leave him his inheritance but his mistress got in the way, yet, the most important thing Gatsby received from Dan Cody was how to act rich.
Gatsby does not come from money, but rather a farming family in North Dakota. Gatsby has created a dream life for himself. He is practically living a lie in order to win back the love of Daisy. Five years earlier, the two were madly in love, but Gatsby was forced to leave her and fight in the war. While he was gone, Daisy married Tom Buchanan, a rich socialite. Gatsby has always believed that she married Tom for money and not him because he was poor. This leads Gatsby to create this fake life of his and to illegally build a fabulous fortune in order to win her back. By changing his name, Gatsby covers his past shame of a poor upbringing with his common parents and tries to reinvent ‘who’ Jay Gatsby is.