In this project, I traveled through a timeline from the days the island became a Spanish dominion until the 1950s when insurgency arose to separate Puerto Rico from the United States and start the process of nation-building. This process never came to fruition due to the clashes between the local nationalist elite and the diaspora in the US. There are various theoretical threads that try to explain identity-forming and the rise of nationalism in Puerto Rico. I summarize these strands and make room for future implications of the case of Puerto Rico.