Historical events for
Tuesday, 15 September 2026

Bocage, Portuguese poet of the neoclassical period, known for his lyricism and satire.

Guerra Junqueiro (1850-1923) was one of the greatest Portuguese poets and pamphleteers of his generation. A central figure of realism, his work was a landmark of social and religious criticism, decisively influencing republican thought in Portugal.

Agatha Christie, British writer, famous for her mystery works, including the adventures of Hercule Poirot.

Celebrating the birth of American cartoonist Walt Kelly, creator of Pogo.

Francisco Lucas Pires, Portuguese politician and jurist, was an MEP and minister in Portugal.

Oliver Stone, American filmmaker, multiple Oscar winner, known for films such as "Platoon" and "JFK".

Tommy Lee Jones, American actor known for his roles in "The Fugitive" and "Men in Black".

Fernanda Torres, award-winning Brazilian actress, known for her work in cinema and television.

Queen consort of Spain, originally trained in journalism (1972- ). Her institutional agenda has been marked by a strong commitment to social causes, public health, education, and support for Ibero-American culture.

On September 15, 1276, the Portuguese Pedro Hispano was elected Pope, adopting the name John XXI, being the only Portuguese pope in history.

Guatemalan Independence Day celebration, commemorating independence from Spain on September 15, 1821. Celebrations include parades, cultural events, and parties.

Honduras Independence Day celebration, commemorating independence from Spain on September 15, 1821. The day is marked by parades, cultural events and community celebrations.

Nicaraguan Independence Day celebration, commemorating independence from Spain on September 15, 1821. The day includes parades, cultural events, and patriotic festivals.

El Salvador's Independence Day celebration, commemorating independence from Spain on September 15, 1821. The day is marked by parades, cultural events and patriotic celebrations.

Costa Rican Independence Day celebration, commemorating independence from Spain on September 15, 1821. The day includes parades, cultural events, and community festivities.

On September 15, 1917, the Russian Republic was proclaimed, which marked the transition from the tsarist regime to the provisional government, before the October Revolution.

On September 15, 1949, Konrad Adenauer was elected the first chancellor of the Federal Republic of Germany, playing a crucial role in post-war reconstruction.

National Health Service Day commemorates the creation of the SNS in 1979, which guarantees universal and free access to healthcare in Portugal.

On September 15, 1989, the remains of writer Eça de Queiroz were transferred to the family tomb in Tormes, marking his symbolic return to the north of Portugal.

On September 15, 1997, the Colombo Shopping Center was opened in Lisbon. This center has become one of the largest and most iconic in Portugal, being a landmark in the city's commerce and leisure.

On September 15, 1998, Optimus (currently NOS) began its operations as the third mobile telecommunications operator in Portugal. Its launch introduced strong competitive dynamism and technological innovation to the national market.

The telecommunications operator Optimus went into operation on September 15, 1998, becoming one of the main companies in the sector in Portugal.

On September 15, 1998, the domain "Google.com" was registered, marking the official beginning of one of the largest technology companies in the world, which revolutionized the way we access information.

On September 15, 1998, Optimus (currently NOS) began its operations as the third mobile telecommunications operator in Portugal. Its launch introduced strong competitive dynamism and technological innovation to the national market.

World Knights Day celebrates the heritage and values ​​of knights, such as courage and honor, that have shaped Western history.

National Beach Cleanup Day encourages environmental awareness and the importance of keeping beaches clean, with volunteers across the country.

The Day of Our Lady of Sorrows commemorates the suffering of Mary, mother of Jesus, during the crucifixion, being an important moment of devotion in the liturgical calendar.

Saint Niketas the Goth was martyred in the 4th century for his Christian faith, being venerated as a symbol of devotion and resistance.

Inspired by the book "The Dot", International Dot Day celebrates creativity and artistic expression, encouraging people to "leave their mark".

International Democracy Day celebrates the importance of democratic principles and human rights around the world.

European Prostate Disease Day aims to raise awareness about conditions that affect the prostate and the importance of early diagnosis.

World Lymphoma Day aims to raise awareness about this form of cancer and the importance of early diagnosis.