Puerto Rico is a self-governing Caribbean archipelago and island that functions as an unincorporated territory, or commonwealth, of the United States. Situated approximately 1,000 miles southeast of Miami, Florida, it lies between the Dominican Republic and the U.S. Virgin Islands. The territory includes the main island of Puerto Rico and several smaller islands, such as Vieques, Culebra, and Mona. Its population is around 3.2 million, distributed across 78 municipalities. The capital and most populous municipality is San Juan. Both Spanish and English are official languages, with Spanish being the more commonly used language.
In 1900, the Foraker Act established a civil government in Puerto Rico, ending the rule by American generals and the Department of War.
In 1901, after the U.S. government assumed control of Puerto Rico, it initiated legal reforms, adopting codes of criminal law, criminal procedure, and civil procedure modeled after those then in effect in California.
In 1902, there was an English-only language law in Puerto Rico.
On 12 March 1903, the University of Puerto Rico was officially founded.
In 1906, the U.S. Supreme Court ruling in Ortega v. Lara affirmed that the U.S. Constitution applied within Puerto Rico's territory.
In 1907, Puerto Rican tenor Antonio Paoli became the first operatic artist to record an entire opera. He participated in a performance of Pagliacci in Milan, Italy.
In 1917, Puerto Ricans were collectively made U.S. citizens as a result of the Jones–Shafroth Act.
In 1917, the Jones Act made Puerto Ricans U.S. citizens, paving the way for Puerto Rico's Constitution.
Since 1917, Puerto Ricans have been included in the U.S. compulsory draft when it has been in effect.
In 1918, the San Fermín earthquake, with a magnitude of 7.5, struck off the coast of Aguadilla, causing widespread damage, losses, and an estimated 116 deaths.
A 2018 study concluded that the 1920 Jones Act has no impact on either retail prices or the cost of living on Puerto Rico.
By 1920, the Ponce Creole architectural style had fully developed in Ponce, Puerto Rico. This style, which blends French, Spanish, and Caribbean influences, was especially built to withstand the climate of southern Puerto Rico.
In 1920, the Merchant Marine Act, also known as the Jones Act, was enacted, preventing foreign-flagged ships from carrying cargo between two American ports.
In September 1928, the Lake Okeechobee Hurricane (San Felipe Segundo) made landfall in Puerto Rico as a Category 5 hurricane.
In 1930, Baloncesto Superior Nacional began and has experienced success since.
In 1931, the name of the island was officially changed back to Puerto Rico through a joint resolution in Congress.
In 1937, the United States issued a postal stamp commemorating Insular Territories. The stamp honoring Puerto Rico featured 'La Fortaleza', the Spanish Governor's Palace.
In 1940, Juanita García Peraza founded the Mita Congregation, the first religion of Puerto Rican origin.
In 1943, Irene Barnes Taeuber reviewed the reliability of census data from Spain in 1765, 1775, 1800, 1815, 1832, 1846 and 1857.
In May 1945, Law No. 40 designated the existence of the Puerto Rico Aqueducts and Sewers Authority (PRASA).
In 1948, Juan Evangelista Venegas won the first Olympic medal for Puerto Rico.
On April 1949, the first free election for governor of Puerto Rico was honored on a U.S. postal stamp, celebrating the election of Luis Muñoz Marín.
In 1950, the U.S. Congress oversaw Puerto Rico under the Puerto Rico Federal Relations Act.
In 1951, the Puerto Rico national baseball team won a gold medal at the Baseball World Cup.
In 1951, the former independent municipality of Río Piedras was annexed to San Juan.
On July 25, 1952, the Spanish official name, Estado Libre Asociado de Puerto Rico, was suggested by Luis Muñoz Marín and adopted by a constitutional assembly.
In 1952, Congress approved a territorial constitution for Puerto Rico, enabling residents to elect a governor, senate, and house of representatives.
In 1952, Puerto Rico's Constitution was approved by Congress and Puerto Rican voters.
In 1952, the island's first synagogue, Sha'are Zedeck, was established by American Jews.
Since 1952, Puerto Rico has had three main political parties, the PPD, PNP and PIP.
In 1957, the Puerto Rico national basketball team joined the International Basketball Federation (FIBA).
Between 1960 and 1990, the census questionnaire in Puerto Rico did not ask about race or ethnicity.
On September 1971, San Juan, Puerto Rico, was commemorated with an 8-cent stamp on its 450th anniversary, featuring a sentry box from Castillo San Felipe del Morro.
In 1971, the most recent municipality, Florida, was founded in Puerto Rico.
In 1973, Roberto Clemente was enshrined in the Baseball Hall of Fame.
The government had already been issuing bonds to balance its actual budget for four decades beginning in 1973.
In 1979, Puerto Rico hosted the Pan American Games, officially in San Juan.
One Pope, John Paul II, visited Puerto Rico in October 1984.
In 1984–2000 the San Juan PPQ station recorded 7.74% of all interceptions.
Pathogen interceptions were dramatically (17%) higher 1999–2000 than in 1985–1986.
Pathogen interceptions were dramatically (17%) higher 1999–2000 than in 1985–1986.
Between 1960 and 1990, the census questionnaire in Puerto Rico did not ask about race or ethnicity.
In 1991, the Autonomous Municipalities Act was enacted, establishing that each municipality would have a mayor and a municipal legislature elected for four-year terms.
In 1992, President George H. W. Bush issued a memorandum establishing the current administrative relationship between the federal government and the Commonwealth of Puerto Rico.
In 1992, the FBI made armed carjacking a federal crime and rates decreased per statistics.
In 1993, Ponce hosted the Central American and Caribbean Games.
In 1993, U.S. Atlantic Command (LANTCOM after) had authority over all U.S. military operations that took place throughout the Atlantic. Puerto Rico had been seen as crucial in supporting LANTCOM's mission.
In 1994, the Puerto Rico national basketball team won gold at the Goodwill Games.
In 1997, a researcher estimated a Protestant population of approximately 33 to 38 percent, the majority of whom are Pentecostal.
As of 1998, the archipelago's endemic species count was recognized to include 239 plants, 16 birds, and 39 amphibians/reptiles.
Pollster Pablo Ramos stated in 1998 that the population was 38 percent Catholic, 28 percent Pentecostal, and 18 percent independent churches.
In 1999, Orlando Cepeda was enshrined in the Baseball Hall of Fame.
In 1999, U.S. Atlantic Command was renamed and given a new mission as U.S. Joint Forces Command. Puerto Rico is currently under the responsibility of U.S. Northern Command.
Pathogen interceptions were dramatically (17%) higher 1999–2000 than in 1985–1986.
According to the 2000 Census, 60.0% of the population attained a high school degree or higher level of education.
Between 1984–2000, the San Juan PPQ station recorded 7.74% of all interceptions.
In 2000, the commonwealth's population peaked at 3,808,610.
In the 2000 census, the count of "American Indian or Alaskan Native" was lower than in 2010.
The 2000 United States Census included a racial self-identification question in Puerto Rico.
The practice of approving budgets with a structural deficit has been done for 25 consecutive years starting in 2000.
As of 2002, the literacy rate of the Puerto Rican population was 94.1%.
In 2003, San Juan hosted the Montreal Expos for several series before they moved to Washington, D.C.
In 2003, a University of Puerto Rico study found that 61.1 percent of those surveyed had mitochondrial DNA of indigenous origin.
On August 2004, the Puerto Rico national basketball team defeated the United States in an Olympic tournament for the first time since NBA players were integrated.
In 2004, San Juan hosted the Montreal Expos for several series before they moved to Washington, D.C.
In March 2006, Hiram Bithorn Stadium in San Juan hosted the opening and second rounds of the World Baseball Classic.
Puerto Rico experienced a recession from 2006 to 2011.
As of 2007, there were 30 TV stations, 125 radio stations and roughly 1 million TV sets on the island.
In 2007, the Puerto Ricans for Puerto Rico Party was registered.
In 2007, there were about 5,000 Muslims in Puerto Rico, representing about 0.13% of the population.
In 2008, The "Flags of our nation series" began, ultimately running through 2012, and featuring five territorial flags.
In 2008, the Puerto Ricans for Puerto Rico Party ceased to be registered.
In 2008, the Puerto Rico Soccer League, the archipelago's first unified league, was established.
In 2009, Puerto Rico paid $3.742 billion into the U.S. Treasury.
In 2009, the United Nations Special Committee on Decolonization approved a draft resolution calling on the U.S. government to expedite a process for Puerto Rican self-determination.
According to the 2010 United States census Puerto Rico had 3,725,789 residents.
As of 2010, there are 1539 public schools and 806 private schools.
Based on 1 July 2019 estimate by the U.S. Census Bureau, the population of the Commonwealth had declined by 532,095 people since the 2010 Census data had been tabulated.
In 2010, Mayagüez hosted the Central American and Caribbean Games.
In 2010, Orthodox Christians accounted for one percent of the population.
In 2010, average life expectancy was 78.7 years.
In 2010, roughly 3 percent identified as multiracial.
In 2011, as part of the "Flags of our nation series", a Forever stamp featuring the Puerto Rico Flag was issued.
In 2011, median home value in Puerto Rico ranged from U.S.$100,000 to U.S.$214,000.
Puerto Rico experienced a recession from 2006 to 2011, interrupted by four quarters of economic growth.
In November 2012, Puerto Rico held a two-question referendum. A majority voted against the status quo and for statehood in the second question with alternate status options.
A Pew Research survey indicated an adult literacy rate of 90.4% in 2012 based on data from the United Nations.
In 2012, Puerto Rico's population declined nearly 1%.
In 2012, The "Flags of our nation series" concluded, after running since 2008, and featuring five territorial flags.
In 2012, the Movimiento Unión Soberanista and the Partido del Pueblo Trabajador emerged, although neither obtained more than 1% of the vote.
In 2013, Puerto Rico's population declined an additional 1% (36,000 people).
In 2013, the Government Accountability Office published a report which concluded that "repealing or amending the Jones Act cabotage law might cut Puerto Rico shipping costs".
Puerto Rico entered into recession again in 2013, following growing fiscal imbalance and the expiration of the IRS Section 936 corporate incentives.
An Associated Press article in March 2014 stated that "more than 70 percent" of Puerto Ricans identified as Catholic.
In 2014, the 65th Infantry Regiment of the U.S. Army, nicknamed The Borinqueneers, was awarded the Congressional Gold Medal for its heroism during the Korean War.
In 2014, the homicide rate in Puerto Rico was 19.2 per 100,000 inhabitants, significantly higher than any U.S. state. Most homicide victims were gang members and drug traffickers, with about 80% of homicides being drug-related.
Religious affiliation in Puerto Rico (2014).
In 2015, the 25,832 Jehovah's Witnesses represented about 0.70% of the population, with 324 congregations.
The Commonwealth had been defaulting on many debts, including bonds, since 2015.
The U.S. Census Bureau's 2015 update stated the household median income as $19,350 and the mean income as $30,463.
In 2016, Jenniffer González-Colón, a member of the New Progressive Party and the Republican Party, was elected as the resident commissioner of Puerto Rico. She received more votes than any other official elected in Puerto Rico that year.
In 2016, Monica Puig won the first gold medal for Puerto Rico in the Olympic Games, winning the Women's Tennis singles title in Rio.
In 2016, President Barack Obama signed PROMESA into law, establishing a Control Board over the Puerto Rican government with significant federal control.
In 2016, the U.S. Supreme Court held that accusing someone of a criminal act at the federal level and then accusing them for the same act in a Commonwealth court in Puerto Rico would constitute double jeopardy.
The letter sent to Congress stated "Without action before April, Puerto Rico's ability to execute contracts for Fiscal Year 2018 with its managed care organizations will be threatened, thereby putting at risk beginning July 1, 2017 the health care of up to 900,000 impoverished U.S. citizens living in Puerto Rico".
In early July 2017, the PREPA power authority was effectively bankrupt after defaulting in a plan to restructure $9 billion in bond debt.
In early August 2017, the island's financial oversight board planned to institute two days off without pay per month for government employees.
On September 7, 2017, Category 5 Hurricane Irma hit Puerto Rico, causing significant damage.
On September 20, 2017, Category 4 Hurricane Maria struck Puerto Rico, causing extreme damage, knocking out power and damaging infrastructure.
In 2017, Hurricane Maria caused severe damage to the island and its infrastructure, disrupting tourism for many months. The damage was estimated at $100 billion.
In 2017, Puerto Rico was affected by Category 5 Hurricane Irma and Category 4 Hurricane Maria, causing widespread and devastating impacts, particularly to the electric grid.
In 2017, another referendum was held in Puerto Rico in favor of statehood, though it was boycotted by some political opponents.
In 2017, the first Eastern Catholic Church was established in Puerto Rico.
In 2017, the impact of hurricanes Maria and Irma, combined with the unincorporated territory's worsening economy, led to its greatest population decline since the U.S. acquired the archipelago.
In 2017, there were 69 hospitals in Puerto Rico.
In early 2017, the Puerto Rican government-debt crisis posed serious problems for the government which was saddled with outstanding bond debt that had climbed to $70 billion.
On July 2018, Puerto Rico Law 120-2018, also known as the "Ley para Transformar el Sistema Eléctrico de Puerto Rico", was signed, authorizing PREPA to sell infrastructure and services to other providers.
A 2018 study concluded that the 1920 Jones Act has no impact on either retail prices or the cost of living on Puerto Rico.
In 2018, a tourism campaign was launched by Discover Puerto Rico intended to highlight the island's culture and history.
The letter sent to Congress stated "Without action before April, Puerto Rico's ability to execute contracts for Fiscal Year 2018 with its managed care organizations will be threatened, thereby putting at risk beginning July 1, 2017 the health care of up to 900,000 impoverished U.S. citizens living in Puerto Rico".
Until 2018, PREPA was the only entity authorized to conduct such business in Puerto Rico, effectively making it a government monopoly.
An April 2019 report indicated that by that time, only a few hotels were still closed, and life for tourists in and around the capital had, for the most part, returned to normal.
Based on 1 July 2019 estimate by the U.S. Census Bureau, the population of the Commonwealth had declined by 532,095 people since the 2010 Census data had been tabulated.
By October 2019, nearly all of the popular amenities for tourists, in the major destinations such as San Juan, Ponce and Arecibo, were in operation on the island and tourism was rebounding.
In 2019, Discover Puerto Rico planned to continue the tourism campaign that was launched in 2018.
In January 2020, Puerto Rico experienced its largest earthquake since 1918, estimated at magnitude 6.4, resulting in more than $3.1 billion in economic losses.
On June 2020, a contract was signed making LUMA Energy the new operator of the energy distribution and transmission infrastructure.
In November 2020, Puerto Rico held a statehood referendum during the general elections, with 52% of voters answering 'yes' to becoming a state.
In November 2020, the last election was held for the governor and legislators, who are elected by popular vote every four years.
According to the 2020 U.S. census, the number of Puerto Ricans living outside of Puerto Rico in the U.S. is almost twice as many as those living in Puerto Rico.
According to the 2020 United States census, Puerto Rico had 3,285,874 residents.
According to the World Bank, the gross national income per capita in Puerto Rico in 2020 was $21,740.
As of 2020, Hispanic or Latinos made up 98.9 percent of the population, of which 95.5 percent were Puerto Rican.
Based on the 2020 Census, the most populous municipality is the capital, San Juan, with 342,259 people.
In June 2021, the takeover of PREPA's operations by LUMA Energy was set for June 1, amidst protests and uncertainty.
As of 2021, average life expectancy is approximately 82.1 years according to the CIA World Factbook.
In 2022, the Puerto Rico Status Act, or H.R. 8393, passed the House, supporting Puerto Rico making a binding referendum, but it did not pass the Senate.
It was estimated that Puerto Rico would become 75 percent evangelical by 2022.
In 2023, the Church of Jesus Christ of Latter-day Saints dedicated a temple in San Juan.
On November 5, 2024, Statehood won a non-binding referendum with 59% of the vote. Also, Jennifer Gonzalez, who is pro-statehood, won the office of Governor of Puerto Rico.