Puerto Rican citizenship
On April 12, 1900, the United States Congress enacted the Foraker Act of 1900, which replaced the governing military regime in Puerto Rico with a civil form of government. Section VII of this act created a Puerto Rican citizenship for the residents "born in Puerto Rico and, therefore, subject to its jurisdiction." The Puerto Rican citizenship replaced the Spanish citizenship that Puerto Ricans held at the time in 1898. Such Puerto Rican citizenship was granted by Spain in 1897. This citizenship was reaffirmed by the United States Supreme Court in 1904 by its ruling in which denied that Puerto Ricans were United States citizens and labeled them as noncitizen nationals. In a 1914 letter of refusal to the offer of U.S. citizenship and addressed to both the President of the United States and the U.S. Congress, the Puerto Rico House of Delegates stated ""We, Porto Ricans, Spanish-Americans, of Latin soul ... are satisfied with our own beloved Porto Rican citizenship, and proud to have been born and brethren in our own motherland."" The official 1916 Report by the American colonial governor of Puerto Rico to the U.S. Secretary of War (the former name for the Department of Defense), addresses both citizenships, the Puerto Rican citizenship and United States citizenship, in the context of the issuance of passports, further evidencing that the Puerto Rican citizenship did not disappear when the Americans took over the island in 1898.
New York City ethnic enclaves
Puerto Ricans have been immigrating to New York since 1838, though they did not arrive in large numbers until the 20th century. In 1910 only 500 Puerto Ricans lived in New York, but by 1970 that number had skyrocketed to over 800,000, and 40% of those lived in the Bronx. Unlike the other four boroughs, Puerto Rican populations are significant throughout the Bronx, though there is slightly higher concentrations in the South Bronx. The first group of Puerto Ricans immigrated to New York City in the mid-19th century when Puerto Rico was a Spanish colony and its people Spanish subjects and as such they were immigrants. The following wave of Puerto Ricans to move to New York City did so after the Spanish–American War in 1898. Puerto Ricans were no longer Spanish subjects and citizens of Spain, they were now Puerto Rican citizens of an American possession and needed passports to travel to the mainland of the United States. That was until 1917, when the United States Congress approved Jones-Shafroth Act which gave Puerto Ricans in the island a U.S. citizenship with certain limitations. Puerto Ricans living in the mainland U.S. however, were given full American citizenship and were allowed to seek political office in the states which they resided. Two months later, when Congress passed the Selective Service Act, conscription was extended to the Puerto Ricans both in the island and in the U.S. It was expected that Puerto Rican men 18 years and older serve in the military during World War I. The Jones-Shafroth Act also allowed Puerto Ricans to travel between Puerto Rico and the United States mainland without the need of a passport, thereby becoming migrants. The advent of air travel was one of the principal factors that led to the largest wave of migration of Puerto Ricans to New York City in the 1950s, known as "The Great Migration". Although Florida has received some dispersal of the population, there has been a resurgence in Puerto Rican migration to New York and New Jersey - consequently, the New York City Metropolitan Area has witnessed an increase in its Puerto Rican population from 1,177,430 in 2010 to a Census-estimated 1,201,850 in 2012, maintaining its status by a significant margin as the most important cultural and demographic center for Puerto Rican Americans outside San Juan.