Castillo San Felipe del Morro

Last updated
Castillo San Felipe del Morro
El Morro
Castillo San Felipe Del Morro (16869927311).jpg
San Juan. Fort San Felipe del Morro. Puerto Rico (2748642339).jpg Castillo San Felipe del Morro SJU 06 2019 6772.jpg
El Morro, Castillo de San Felipe.jpg USA-2016-Puerto Rico-San Juan-Castillo San Felipe del Morro (and lighthouse) 03.jpg
Castillo San Felipe del Morro - 50815666247.jpg
Castillo del Morro in San Juan, Puerto Rico.jpg View of Castillo San Felipe del Morro.jpg Panorama Fortaleza El Morro SJU 06 2019 6564.jpg
Front view of El Morro from the Atlantic; inside view from fourth level inner bailey onto ramp to third-level battlements; panoramic view from third-level onto bay and ocean with garitas or bartizans visible; inside view from to third-level surrounding outer bailey onto ramp to fourth-level inner bailey with sentry boxes visible; entrance view from dry moat onto curtain wall, drawbridge, hornwork gate, and lighthouse; side view from opening of San Juan Bay next to Paseo del Morro; panoramic entrance view from middle of bay onto western section of the Walls of Old San Juan; panoramic entrance view from northern section of the Walls of Old San Juan onto glacis with the dome of chapel in Santa María Magdalena de Pazzis Cemetery visible; and panoramic entrance view from
Explanda del Morro
Castillo San Felipe del Morro
Interactive
General information
Type Medieval fortification, Citadel, Promontory fort
Architectural style Classical architecture
Location San Juan Islet, Old San Juan, Puerto Rico
Address501 Calle Norzagaray, Old San Juan, San Juan, PR, 00901
Coordinates 18°28′15″N66°7′27″W / 18.47083°N 66.12417°W / 18.47083; -66.12417
Construction started1539
Completed1787
Height140 feet
Dimensions
Diameter18 to 20 feet thick walls
Technical details
Material Sandstone, Brick, Sand, Clay
Size70 acres
Floor count6 levels
Design and construction
EngineerJuan de Tejada, Juan Bautista Antonelli (1587); Alejandro O'Reilly, Thomas O’Daly (1765)
Known for Battle of San Juan (1595) Battle of San Juan (1598) Battle of San Juan (1625) Battle of San Juan (1797) Bombardment of San Juan (1898)
TypeCultural
Criteriavi
Designated1983 (7th session)
Part of La Fortaleza and San Juan National Historic Site in Puerto Rico
Reference no. 266
Region The Americas
DesignatedOctober 15, 1966
Part of San Juan National Historic Site
Reference no.66000930 [1]
Official nameLa Fortaleza
DesignatedFebruary 27, 2013
Reference no.13000284 [2]

Castillo San Felipe del Morro (English: Promontory Castle of Saint Philip), most commonly known as El Morro(The Promontory), is a large fortress and citadel in the historic district of Old San Juan, Puerto Rico. Commissioned by Charles I of Spain in 1539, it was first built as a fortified tower in honor of Philip II, who oversaw its expansion into a hornwork fort by 1595. Over the next 200 years, especially in the reign of Charles III, El Morro continued to be developed to reach its current form in 1787. Rising 140 ft from the Atlantic shoreline with 18 to 25 ft thick walls, it stands on a steep, rocky headland promontory on San Juan Islet guarding the entry to San Juan Bay, the harbor of Old San Juan. El Morro, alongside La Fortaleza, San Cristóbal, El Cañuelo, and other forts part of the Walls of Old San Juan, protected strategically and militarily important Puerto Rico, La Llave de las Indias (The Key to the Indies), from invasion by competing world powers during the Age of Sail. [3] [4]

Contents

Development

Lying on the northwesternmost point of the islet of Old San Juan, Castillo San Felipe del Morro is named in honor of King Philip II of Spain. The fortification, also referred to as el Morro or 'the promontory,' was designed to guard the entrance to the San Juan Bay, and defend the Spanish colonial port city of San Juan from seaborne enemies. [5]

In 1983, the citadel was declared a World Heritage Site by the United Nations in conjunction with the San Juan National Historic Site. Over two million visitors a year explore the castillo, making it one of Puerto Rico's leading tourist attractions. Facing the structure, on the opposite side of the bay, a smaller fortification known as El Cañuelo complemented the castillo's defense of the entrance to the bay. [3] [5]

Structure for deployment

Architectural drawings produced in the HABS San Juan, Puerto Rico field office Castillo de San Felipe del Morro, Northwest end of San Juan, San Juan, San Juan Municipio, PR HABS PR,7-SAJU,6- (sheet 14 of 14).png
Architectural drawings produced in the HABS San Juan, Puerto Rico field office
El Morro in 1591 National park marker for del Morro, 1591.jpg
El Morro in 1591

The construction of the citadel and its surrounding walls began in 1539 on orders of King Charles V of Spain. [6] The original fortress was built under the direction of conquistador Diego Ramos de Orozco and its main purpose was to defend the port of San Juan by controlling the entry to its harbor. In order to have a viable defense while the rest of the fort was being completed, a small proto-fortress was erected during the first year of construction. It is estimated that this section comprises about 10% of the whole structure.

It was not till 1587, however, that Field Marshal Juan de Tejeda and the Italian engineer-architect Juan Bautista Antonelli drew the fort's final design. The plan, which was based on the then firmly established Spanish military fortification principles of the time, included fortifying nine other sites in the Spanish Main and Spanish West Indies: Santo Domingo, Santa Marta, Cartagena, Nombre de Dios, Portobelo, the Chagres River, Panama City, Havana, and St. Augustine. San Juan construction began in March 1589 with skilled artisans, 12 stonecutters, 18 masons, 2 smiths, a cooper, metal founder, and an overseer assigned to the task, with the help of 150 slaves. Captain General Diego Menéndez de Valdés, who was the governor of Puerto Rico, took over construction after Tejeda and Antonelli left to start construction of Santo Domingo's fortifications. Capt. Pedro de Salazar took over construction in 1591. [7] :29–31

View of El Morro's entrance El morro from front.jpg
View of El Morro's entrance

The new fortifications consisted of a hornwork, crossing the headland, to protect the landward side of the existing tower and water battery. Two half-bastions, one on the Atlantic side called "Tejeda", and another on the harbor side called "Austria", were connected by a curtain wall fronted by a moat, and spanned by a drawbridge in the center. The gate and drawbridge were protected by a ravelin, and just inside the gate was a guardhouse. A pair of batteries behind the hornwork overlooked the sea and harbor. [7] :30–31,54–55

In 1634, construction of the city walls surrounding San Juan began. By 1650, the town was enclosed on the east, south and west, while natural battlements protected the city along the Atlantic. [7] :52–55

In 1765, Alejandro O'Reilly, Inspector General of Cuba, and Colonel Tomás O'Daly, San Juan Chief of Engineers, agreed on a plan to strengthen San Juan's defenses, which was approved by Charles III of Spain. San Juan became a Defense of the First Order, and one of the most powerful plazas in the Americas by 1790. El Morro's improvements included 3 cisterns under the main plaza containing 216,000 gallons of water collected from times of rain. The walls were strengthened to be 18–40 feet thick. These walls consisted of limestone and sandstone blocks forming the exterior and interior, with rubble sandwiched in between. The Santa Bárbara battery became the main battery with 37 cannon, supported by casemate guns at a lower level, and backed by a great wall with casemates at a higher level. [7] :54–55,59–61,64–65

The top of the Castillo de San Felipe del Morro Lighthouse was destroyed during the 1898 bombardment of the city by the United States, and the American flag replaced the Spanish on 18 November 1898. [7] :78 [5] :163

The lighthouse in El Morro, level 6 Lighthouse Castillo San Felipe del Morro SJU 06 2019 6697.jpg
The lighthouse in El Morro, level 6

History

Spanish Rule (1539–1898)

El Morro Castillo san felipe del moro.jpg
El Morro

Upon the advice of Gonzalo Fernández de Oviedo y Valdés, a battery was constructed on the rocky promontory called "the Morro", when the location of La Fortaleza was deemed unsuitable. This battery consisted of a tower with 4 embrasures, and a Water Battery at the foot of the slope for 3 guns. By 1555, Morro had 8 bronze cannons, as a defense against French privateers. [8] [7]

During the Spanish government of the island, El Morro, also known as Castillo de San Felipe, survived several attacks from foreign powers on various occasions.

In 1593 Portuguese soldiers, sent from Lisbon by order of Phillip II, composed the first garrison of the San Felipe del Morro fortress in Puerto Rico. Some brought their wives, while others married Puerto Rican women, and today there are many Puerto Rican families with Portuguese last names.

In 1595, Englishman Sir Francis Drake unsuccessfully attacked San Juan with his fleet in the Battle of San Juan (1595).

In 1598, the English attacked again, led by George Clifford, 3rd Earl of Cumberland. Clifford succeeded because he attacked San Juan over land instead of trying to enter through the San Juan Bay. However, an epidemic of dysentery forced him to flee the island after the Battle of San Juan (1598).

Main gate of the castle Gate El Morro SJU 06 2019 6612.jpg
Main gate of the castle

In 1625, the Dutch, led by Boudewijn Hendricksz, also attacked the island emulating George Clifford's overland invasion. To the amazement of the citizens, the invaders were able to pass in front of the castle's defenders and into the harbor, out of reach of the city's cannons. El Morro managed to resist the siege and eventually made the Dutch retire, although the attackers were able to sack and burn the city before leaving the Battle of San Juan (1625).

In 1797, British General Ralph Abercromby and Admiral Henry Harvey, with a force of 7,000–13,000 men, invaded the island of Puerto Rico. Captain General Don Ramón de Castro and his forces repelled the attack. Abercromby and Harvey were defeated in the Battle of San Juan (1797).

El Morro's last active fight occurred during a naval bombardment by the United States Navy during the 1898 Spanish–American War, ending the age of naval warfare in the Caribbean, at least in the classical sense. During the Spanish–American War, the castle was attacked at least three times by American naval forces, the largest being the Bombardment of San Juan on May 12, 1898. The war ended with the signing of the Treaty of Paris, in which Spain ceded ownership of the islands of Puerto Rico, Cuba, Guam, and the Philippines to the United States.

American military occupation (1898–1961)

Main gate and the lighthouse in 1933. (Library of Congress Prints and Photographs Division Washington). Castillo de San Felipe del Morro, Northwest end of San Juan, San Juan, San Juan Municipio, PR HABS PR,7-SAJU,6-114.tif
Main gate and the lighthouse in 1933. (Library of Congress Prints and Photographs Division Washington).

El Morro and many other Spanish government buildings in Old San Juan became part of a large U.S. Army post, called Fort Brooke. In the early 20th century, the U.S. military filled up the esplanade (the green space in front of "El Morro") with baseball diamonds, hospitals, officers' quarters, an officers' club and even a golf course.

On March 21, 1915, Lt. Teófilo Marxuach was the officer of the day at the El Morro fortress. The Hamburg America Line cargo liner Odenwald tried to leave port without permission from the Customs Collector. Lt. Marxuach gave the order to open fire on her, which forced her to stop. [9] The shots ordered by Lt. Marxuach are widely regarded to be the first shots fired by the United States in World War I, although the first actual wartime shot fired by the US came on the day war was declared, during the scuttling of SMS Cormoran off Guam.

During World War II the United States Army added a massive concrete bunker to the top of El Morro to serve as a Harbor Defense Fire Control Station to direct a network of coastal artillery sites, and to keep watch for German submarines which were ravaging shipping in the Caribbean. A lighthouse, rebuilt by the U.S. Army in 1906–08 is the tallest point on El Morro, standing 180 feet (55 m) above sea level. Flagpoles on El Morro today customarily fly the United States flag, the Puerto Rican flag and the Cross of Burgundy flag, also known in Spanish as las Aspas de Borgoña, a standard which was widely used by Spanish armies around the world from 1506 to 1785.

National Park (1961–present)

Panorama view of the city from the castle El Morro Old San Juan Panorama.jpg
Panorama view of the city from the castle

In 1961, the United States Army officially retired from El Morro. The fort became a part of the National Park Service to be preserved as museums. In 1983, the Castillo and the city walls were declared a World Heritage Site by the United Nations. In honor of the Quincentennial of the voyages of Columbus in 1992 the exterior esplanade was cleared of palm trees that had been planted by the U.S. Army in the Fort Brooke era, and restored to the open appearance this "field-of-fire" for El Morro's cannon would have had in colonial Spanish times. Parking lots and paved roads were also removed, and the El Morro lighthouse repaired and restored to its original appearance. The 1963 film Thunder Island featured an extensive foot chase and shootout scene filmed at El Morro. El Morro was also used as a film set in the 1996 motion picture Amistad . Steven Spielberg used it to represent a fort in Sierra Leone where African slaves were auctioned in 1839. African slave labor was used in addition to local labor to help build the castillo. El Morro was a defensive military fortification and a major component of San Juan's harbor defense system. Puerto Rico as such was considered by the Spanish crown as the "Key to the Antilles"; no enemy ship could navigate its waters without fear of capture.

An annual artisans festival is held at the fort every July. [10] [11]

Historical timeline

One of many iconic garitas ElMorro2.JPG
One of many iconic garitas
Cannon at Castillo San Felipe del Morro Fort San Felipe del Morro - IMG 0262.JPG
Cannon at Castillo San Felipe del Morro
View of Castillo San Felipe del Morro from El Canuelo El Morro Castle, San Juan, Puerto Rico.jpg
View of Castillo San Felipe del Morro from El Cañuelo
Plaza del Quinto Centenario Plaza del Quinto Centenario - San Juan, Puerto Rico - panoramio (1).jpg
Plaza del Quinto Centenario

See also

Some other forts in San Juan:


Related Research Articles

<span class="mw-page-title-main">San Juan, Puerto Rico</span> Capital and largest city of Puerto Rico

San Juan is the capital city and most populous municipality in the Commonwealth of Puerto Rico, an unincorporated territory of the United States. As of the 2020 census, it is the 57th-largest city under the jurisdiction of the United States, with a population of 342,259. San Juan was founded by Spanish colonists in 1521, who called it Ciudad de Puerto Rico.

<span class="mw-page-title-main">La Fortaleza</span> Official residence and office of the governor of Puerto Rico

La Fortaleza, also known as Palacio de Santa Catalina, has been the official residence of the governor of Puerto Rico since the 16th century, making it the oldest executive mansion in continuous use in the New World. Built between 1533 and 1540 by orders of Charles I of Spain, the structure was the first fortification constructed by the Spanish on San Juan Islet to defend San Juan Bay, the harbor of Old San Juan. La fortaleza, alongside El Morro, San Cristóbal, El Cañuelo, and other forts part of the Walls of Old San Juan, protected strategically and militarily important Puerto Rico, La Llave de las Indias , from invasion by competing world powers and harassment by privateers and pirates during the Age of Sail. It was designated a World Heritage Site by UNESCO in 1983 as part of La Fortaleza and San Juan National Historic Site.

<span class="mw-page-title-main">Castillo San Cristóbal (San Juan)</span> Fortress in San Juan, Puerto Rico

Castillo San Cristóbal is a fortress in San Juan, Puerto Rico. It was built by the Spanish to protect against land-based attacks on the historic city of Old San Juan. It is part of San Juan National Historic Site.

<span class="mw-page-title-main">Old San Juan</span> Historic district of San Juan, Puerto Rico

Old San Juan is a historic district located at the "northwest triangle" of the islet of San Juan in San Juan. Its area roughly correlates to the Ballajá, Catedral, Marina, Mercado, San Cristóbal, and San Francisco sub-barrios (sub-districts) of barrio San Juan Antiguo in the municipality of San Juan, Puerto Rico. Old San Juan is the oldest settlement within Puerto Rico and the historic colonial district of the city of San Juan. This historic district is a National Historic Landmark District named Zona Histórica de San Juan and is listed on the United States National Register of Historic Places as the Old San Juan Historic District. Several historical buildings and structures, particularly La Fortaleza, the city walls, and El Morro and San Cristóbal castles, have been inscribed in the UNESCO World Heritage Site list since 1983. Historically the mixed-use commercial and residential real estate in the main streets of Calle Cristo and Calle Fortaleza from Calle Tanca to the Governor’s Mansion is the most valuable in the area and it has kept its value and increased steadily through several years despite the past economic turmoils.

<span class="mw-page-title-main">Fortín de San Gerónimo</span> Small historic fort in San Juan, Puerto Rico

Fortín de San Gerónimo de Boquerón is a small fort located at the mouth of the Condado Lagoon, across from the historic sector of Miramar in San Juan, Puerto Rico.

<span class="mw-page-title-main">San Juan National Historic Site</span> U.S. national park site in Puerto Rico

San Juan National Historic Site in the Old San Juan section of San Juan, Puerto Rico, is a National Park Service-managed historic site which preserves and interprets the Spanish colonial-era fortification system of the city of San Juan, and features structures such as the San Felipe del Morro and San Cristóbal fortresses. This fortification system is the oldest European construction under United States jurisdiction and one of the oldest in the New World. This national historic site, together with La Fortaleza, have been designated a UNESCO World Heritage Site since 1983.

<span class="mw-page-title-main">Fortín San Juan de la Cruz</span> Fortress in Palo Seco, Toa Baja, Puerto Rico

Fortín San Juan de la Cruz, most commonly known as El Cañuelo, was built on Isla de Cabras in the Palo Seco barrio of the municipality of Toa Baja, at the western end of the entrance to San Juan Bay, in Puerto Rico. The square coastal fort has massive sandstone walls that date back to the 1630s. Although the U.S. Navy bombarded the fort in 1898, the fort survived. Today the fort is part of the San Juan National Historic Site, which is listed as a UNESCO World Heritage Site and on the National Register of Historic Places. The fort is not open to visitors, but it can be viewed from its exterior.

<span class="mw-page-title-main">Castillo de los Tres Reyes Del Morro</span> Fortress in Havana, Cuba

The Castillo de los Tres Reyes del Morro(English: Castle of the Three Kings of Morro), also known as Castillo del Morro(Morro Castle), is a fortress guarding the entrance to the Havana harbor. The design is by the Italian engineer Battista Antonelli (1547–1616). Originally under the control of Spain, the fortress was captured by the British in 1762, returned to Spain under the Treaty of Paris (1763) a year later. The Morro Castle was the main defense in the Havana harbor until La Cabaña was completed in 1774.

<span class="mw-page-title-main">Teófilo Marxuach</span> US Army officer (1877–1939)

Lieutenant Colonel Teófilo Marxuach,, was the person who ordered the first shots fired in World War I on behalf of the United States on a German cargo liner trying to leave San Juan Bay without permission. Marxuach ordered shots from a machine gun, and from a gun in the Santa Rosa battery of the Castillo San Felipe del Morro, in what are considered to be the first shots of World War I fired by the regular armed forces of the United States against any ship of the Central Powers, forcing Odenwald to stop and to return to port.

<span class="mw-page-title-main">Isla de Cabras</span> Island peninsula in Toa Baja, Puerto Rico

Isla de Cabras is an islet located at the entrance of the San Juan Bay in Puerto Rico. It is part of the Palo Seco barrio of the municipality of Toa Baja.

<span class="mw-page-title-main">Faro del Castillo San Felipe del Morro</span> First lighthouse built in Puerto Rico

Faro del Castillo San Felipe del Morro, also known as Puerto San Juan Light, and most commonly referred to as Faro del Morro(Morro Lighthouse), is a lighthouse atop the walls of Castillo San Felipe del Morro in Old San Juan. It's the first lighthouse built in Puerto Rico.

<span class="mw-page-title-main">Battista Antonelli</span> Italian engineer

Battista Antonelli (1547–1616) was a military engineer from a prestigious Italian family of military engineers in the service of the Habsburg monarchs of Austria and Spain. He is credited with designing fortresses in Spanish colonial cities in the Caribbean, including Cartagena de Indias in Colombia, Havana in Cuba, and San Juan Bautista in Puerto Rico.

<span class="mw-page-title-main">Bombardment of San Juan</span> Engagement between US Navy warships and Spanish in Puerto Rico

The Bombardment of San Juan, or the First Battle of San Juan, on 12 May 1898 was an engagement between United States Navy warships and the Spanish fortifications of San Juan, Puerto Rico. It was the first major action of the Puerto Rican Campaign during the Spanish–American War.

<span class="mw-page-title-main">Battle of San Juan (1625)</span> Fought on 29 September 1625 in Puerto Rico

The Battle of San Juan was fought on 29 September 1625, and was an engagement of the Eighty Years' War. A Dutch expedition under the command of Boudewijn Hendricksz attacked the island of Puerto Rico, but despite besieging San Juan for two months, was unable to capture it from Spain.

<span class="mw-page-title-main">La Fortaleza and San Juan National Historic Site in Puerto Rico</span> World heritage site in Puerto Rico

La Fortaleza and San Juan National Historic Site in Puerto Rico is a UNESCO World Heritage Site located in Puerto Rico, an unincorporated territory of the United States in the Caribbean. The world heritage site consists of several historic defensive structures built by the Spanish Empire between the 16th and 20th centuries to defend the strategically located colonial city of San Juan and its bay from foreign attacks. These fortifications are among the oldest European-built defensive systems and largest of its kind in the Western Hemisphere. In addition to its historic importance the site is notable for its architectural significance as one of the most prominent military adaptations of Renaissance and Baroque architecture in the Americas.

<span class="mw-page-title-main">Línea Avanzada</span> United States historic place

The Advanced Defense Line is a historic district consisting of four structures that formed part of the eastern defensive system of the Islet of San Juan in San Juan, Puerto Rico.

<span class="mw-page-title-main">Walls of Old San Juan</span> Fortification in Puerto Rico

The Walls of Old San Juan is a defensive city wall that surrounds the western end of the San Juan Islet, site of the historic district of San Juan, Puerto Rico. This defensive wall system was built between the 16th and 18th centuries to protect the city and the Bay of San Juan, a highly strategic point in the Caribbean. These walls, along with the defensive fortresses in Old San Juan, form part of the UNESCO World Heritage Site-designated San Juan National Historic Site as they are characteristic examples of the historic methods of construction used in military architecture which adapted European designs and techniques to the special conditions of the Caribbean port cities.

<span class="mw-page-title-main">Paseo del Morro</span> Promenade in the historic district of San Juan, Puerto Rico

Paseo del Morro, is a waterside, riprap-lined, breakwater-protected pedestrian promenade about 1.5 miles (2.4 km) in length located in the historic district of Old San Juan in Puerto Rico that runs adjacent and parallel to the western section of the Walls of Old San Juan on San Juan Bay. Built in 1999 as a extension of an existing 18th-century maintenance walkway on the southwestern section of the wall located on the final stretch of Paseo de la Princesa (Promenade of the Princess), the promenade is a contemporary construction bordering the western defensive wall, which originally stood directly exposed to the waters of San Juan Bay. It was designated a National Recreational Trail in 2001.

<span class="mw-page-title-main">Spanish fortifications in America</span>

The coastal 'fortifications' of Spain in America are the works of military engineering that bear witness to the four hundred years of Spanish presence in America. They were built from northern California to Tierra del Fuego. Their purpose was the defense of port towns against the attack of the fleets of the English, French and Dutch armies, as well as corsairs and pirates.

References

  1. "National Register Information System". National Register of Historic Places . National Park Service. July 9, 2010.
  2. cite web "San Juan National Historic Site El Morro Esplanade Cultural Landscape" (PDF). pr.gov. Retrieved 1 February 2024.
  3. 1 2 www.nps.gov National Park Service - San Juan National Historic Site - The Gibraltar of the Caribbean - Accessed on 2014-11-29
  4. "Justificación para una historia militar de Puerto Rico" (PDF). Academia Puertorriqueña de la Historia (in Spanish). April 4, 2023. pp. 250–51. Retrieved January 19, 2024.
  5. 1 2 3 "Old San Juan Historic District" (PDF). NPS. WBM: United States Department of the Interior. Archived from the original (PDF) on April 11, 2019. Retrieved 31 July 2019.
  6. Cummins, Thomas. "El Morro, view of walls, late 16th c. Juan de Tejada and Juan Bautista Antonelli. San Juan, Puerto Rico". Visual Culture in Spanish America. Retrieved March 25, 2018.
  7. 1 2 3 4 5 6 The Forts of Old San Juan. Washington, D.C.: Division of Publications, National Park Service, U.S. Dept. of the Interior. 2018. pp. 24–25. ISBN   9780912627625.
  8. Van Middeldyk, R.A. (1903). Brumbaugh, Martin (ed.). The History of Puerto Rico: From the Spanish Discovery to the American Occupation. D. Appleton and Company. pp.  109–110. Retrieved 6 March 2019.
  9. "Calls Odenwald affair an attack" . The New York Times . 7 April 1915. p. 3. Retrieved 21 March 2024 via Times Machine.
  10. "El Morro Artisan Fair 2012 | Discovering Puerto Rico". 20 June 2012.
  11. "San Juan National Historic Site celebrates12th Annual Artisan's Fair at El Morro - San Juan National Historic Site (U.S. National Park Service)". www.nps.gov.
  12. El Morro, San Cristobal y San Geronimo en peligro en caso de terremoto Archived January 8, 2014, at the Wayback Machine on NoticiasOnline (6/7/2009)
  13. "Historic Light Station Information and Photography: Puerto Rico". United States Coast Guard Historian's Office. Archived from the original on 2017-05-01. Retrieved 2008-10-26.
  14. "US Naval Institute Proceedings"; "A Breach of Neutrality"; by: Lt. Isaiah Olch, US Navy; Vol. 62; July – December 1936
  15. ""Mission: Impossible" The Field (TV Episode 1971) - Trivia - IMDb". IMDb. Retrieved 7 April 2023.
  16. "8th ANNUAL ARTISAN FAIR AT CASTILLO SAN FELIPE DEL MORRO". San Juan National Historic Site (U.S. National Park Service). 12 June 2012. Retrieved 14 June 2020.
  17. "Plaza del Quinto Centenario". Discover Puerto Rico. Retrieved 30 July 2020.
  18. "Puerto Rico". Amura Yachts & Lifestyle (in Latin). Retrieved 22 August 2019.