September 17

Holidays

73 holidays recorded on September 17 throughout history

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Quote of the Day

“Enjoy your own life without comparing it with that of another.”

— Marquis de Condorcet

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Antiquity 13

Dutch citizens and veterans gather annually on September 17 to commemorate the launch of Operation Market Garden, the…

Dutch citizens and veterans gather annually on September 17 to commemorate the launch of Operation Market Garden, the largest airborne assault in military history. By honoring the Allied paratroopers who dropped into the Netherlands in 1944, the nation preserves the memory of the failed attempt to secure a swift bridgehead into Germany across the Rhine.

September 17 is Constitution Day in the United States — the anniversary of the signing in 1787.

September 17 is Constitution Day in the United States — the anniversary of the signing in 1787. But here's what often gets skipped: 39 delegates signed it, and 3 refused. Edmund Randolph, George Mason, and Elbridge Gerry walked out without signing, primarily because the document contained no Bill of Rights. Mason predicted it would produce "either a monarchy or a corrupt oppressive aristocracy." The Bill of Rights was added two years later. Sometimes the dissenters shape the document as much as the signers do.

Angola's National Heroes' Day falls on September 17th, honoring Agostinho Neto — the country's first president and th…

Angola's National Heroes' Day falls on September 17th, honoring Agostinho Neto — the country's first president and the poet-physician who led the MPLA through decades of anti-colonial struggle. Angola gained independence in 1975 after 500 years of Portuguese rule, then immediately entered a civil war that lasted 27 more years. The heroes the day celebrates fought one battle and inherited another.

Satyrus of Milan was the older brother of Ambrose — the bishop who baptized Augustine of Hippo, the man who shaped We…

Satyrus of Milan was the older brother of Ambrose — the bishop who baptized Augustine of Hippo, the man who shaped Western Christianity. Satyrus ran his brother's household and administrative affairs so Ambrose could focus on theology. Without that arrangement, Ambrose might not have had the time. Without Ambrose, Augustine might not have converted. The feast day goes to Satyrus. The fame went to his brother. And the argument can be made — quietly, carefully — that the brother who stayed home and handled the accounts changed the direction of Western thought.

Residents of Pompéia, São Paulo, celebrate their city’s founding today, honoring the 1928 establishment of the munici…

Residents of Pompéia, São Paulo, celebrate their city’s founding today, honoring the 1928 establishment of the municipality. Originally carved from the dense forests of the Paulista interior, the town transformed into a regional hub for agricultural machinery manufacturing, anchoring the local economy and defining the industrial identity of the surrounding Alta Paulista region.

The Orthodox Church honors the martyrs Socrates and Stephen, whose steadfast refusal to renounce their faith during t…

The Orthodox Church honors the martyrs Socrates and Stephen, whose steadfast refusal to renounce their faith during the early persecutions solidified the endurance of the Christian community. Their commemoration serves as a reminder of the personal sacrifices that transformed a small, underground movement into a resilient religious tradition across the Roman Empire.

Belarus's National Unity Day marks the date in 1939 when Soviet forces crossed into eastern Poland — territory that b…

Belarus's National Unity Day marks the date in 1939 when Soviet forces crossed into eastern Poland — territory that became part of Soviet Belarus after the Molotov-Ribbentrop Pact carved Poland in two. Establishing the holiday in 2021 was President Lukashenko's direct response to mass protests against his rule. A date that commemorates a Soviet annexation, rebranded as national togetherness. History is always available for repurposing.

Marathwada spent over two centuries under Nizam rule — first the Mughal-appointed dynasty, then the independent Hyder…

Marathwada spent over two centuries under Nizam rule — first the Mughal-appointed dynasty, then the independent Hyderabad State. When India won independence in 1947, Hyderabad didn't join. It took a military operation codenamed Operation Polo in September 1948 to force annexation. Marathwada's liberation came a full year after the rest of India's. The region marks that delay every year — a reminder that independence didn't arrive everywhere on the same day.

Australia didn't have formal citizenship until 1949 — before that, Australians were simply British subjects.

Australia didn't have formal citizenship until 1949 — before that, Australians were simply British subjects. The first person to receive Australian citizenship was Prime Minister Ben Chifley, in a ceremony designed to make the point. Australian Citizenship Day marks that shift: the moment a continent-sized country decided its people belonged to it specifically, not to a crown on the other side of the world.

Ariadne of Phrygia was, according to her Acts, a slave in the household of a Phrygian prince who fled into the hills …

Ariadne of Phrygia was, according to her Acts, a slave in the household of a Phrygian prince who fled into the hills rather than participate in pagan rites honoring his son's birthday. She hid in a rock cleft — which, the story says, opened to receive her and closed again. Miraculously or not, she was never found. Venerated since at least the early medieval period, she's the patron of those fleeing religious coercion. The Acts are almost certainly legendary. The impulse they describe — run, hide, refuse — is very human.

Today's Eastern Orthodox observances follow the old calendar's logic — saints' days fixed in the Julian system, celeb…

Today's Eastern Orthodox observances follow the old calendar's logic — saints' days fixed in the Julian system, celebrated by Orthodox communities from Greece to Ethiopia to Russia to the American diaspora. The same names, the same hymns, the same sequence of fasts and feasts. Across fifteen centuries of schisms, invasions, communist suppressions, and diaspora, the liturgical calendar held. Not because it was enforced. Because each generation passed it to the next one and the next one kept it.

Initiates of the Eleusinian Mysteries purified themselves on this fourth day by sacrificing a pig to Demeter.

Initiates of the Eleusinian Mysteries purified themselves on this fourth day by sacrificing a pig to Demeter. This ritual cleansing allowed participants to shed their past transgressions, granting them the spiritual eligibility required to witness the secret, far-reaching rites that promised a better afterlife for the faithful.

Hildegard of Bingen, the 12th-century Benedictine abbess whose feast falls today, wasn't just a mystic — she was a co…

Hildegard of Bingen, the 12th-century Benedictine abbess whose feast falls today, wasn't just a mystic — she was a composer, a medical writer, a natural historian, and a political correspondent who lectured popes and emperors by letter. She wrote 70 musical compositions, more than any named composer from the medieval era. The Church took 900 years to officially canonize her. She was named a Doctor of the Church in 2012 — only the fourth woman ever granted that title.

Undated 60

Aniversário da cidade de Pompeia, São Paulo

Leonella Sgorbati († 2006), bienheureuse religieuse italienne et martyre.

Martin de Hinojosa († 1213), abbé cistercien puis évêque de Sigüenza.

Pierre d'Arbues († 1485), prêtre espagnol et martyr.

Renaud († 1103), moine à Soissons, puis ermite en actuelle Mayenne puis dans l'actuelle Sarthe.

Sigismond Félix Felinski († 1895), évêque polonais et fondateur de congrégation.

Sigismond Sajna († 1940), prêtre polonais et martyr.

Cyprien de Kiev († 1406), comme la veille 16 septembre avec Saint Cyprien de Carthage beaucoup plus anciennement enco…

Cyprien de Kiev († 1406), comme la veille 16 septembre avec Saint Cyprien de Carthage beaucoup plus anciennement encore, aux dates éventuellement différentes dans les calendriers julien, orientaux.

ses variantes : Raynaud, Réginald, Renaut, Reynald, Ronald ;

Hildegarde,

Laure, Lara, Laura, Laurie, Laurine, Laurence, Laurette, Loretta, Lorette, Lorie, etc. (voir les 10 août) ;

aux Lubin,

Urfol, Urfold, Urphoed, Wulphroëdus, Urvoy, Urvoas.

François-Marie de Camporosso († 1866), religieux capucin.

Estanislau Papczyński (en religion Stanislas de Jésus Marie Papczyński) († 1701), prêtre polonais et fondateur de con…

Estanislau Papczyński (en religion Stanislas de Jésus Marie Papczyński) († 1701), prêtre polonais et fondateur de congrégations.

Emmanuel Nguyen († 1798), prêtre vietnamien martyr.

Chérubin Testa d'Avigliana († 1479), prêtre italien.

Uni († 936), Évêque de Brême et de Hambourg.

Sophie de Rome (IIe siècle), Martyre.

Satiro († v.

Satiro († v. 377), frère de saint Ambroise de Milan.

Rouin (VIIe siècle), Abbé.

Lubin de Chartres (en latin Leobinus), évêque de Chartres du milieu du VIe siècle, mort vers 557.

Floscel (IIIe siècle), Martyr.

Flaceau (VIIIe siècle), prêtre.

Agathoclie († ?), martyre.

La journée mondiale de l’arthrose

Journée mondiale de la sécurité des patients instituée en 2019 par l'OMS (quelques semaines avant les premiers cas di…

Journée mondiale de la sécurité des patients instituée en 2019 par l'OMS (quelques semaines avant les premiers cas diagnostiqués comme la nouvelle maladie de SARSCov2 / covid19 et la pandémie s'en étant suivie).

et les féminines : Renaude, Reynalda, Ronalda, Ronaldina, Ronaldine (voir Reine etc. les 7 septembre).

Namenstage Ariane, Hildegard, Lambert, Robert

Australian Citizenship Day

Beato Segismundo Sajna, presbítero y mártir (1940).

Beatos Juan Ventura Solsona y 'Timoteo Valero Pérez', presbíteros y mártires (1936).

San Francisco María de Camporosso (1866).

San Manuel Nguyen Van Trieu, presbítero y mártir (1798).

Beato Querubín Testa, presbítero (1479).

San Reinaldo de Mélinais (1104).

Santa Columba de Córdoba, virgen y mártir (853).

San Rodingo de Argona, abad (s.

San Rodingo de Argona, abad (s. VIII).

Perú Perú: Día de la Geología Nacional.

Perú Perú: Día de la Geología Nacional. En homenaje al sabio Carlos Lissón Beingolea, considerado el padre de la geología peruana, que nació un 17 de septiembre de 1868 (hace ya 157 años, 5 meses y 24 días).

HondurasHonduras Honduras: Día del Maestro.

HondurasHonduras Honduras: Día del Maestro. En homenaje a José Trinidad Reyes.

Guatemala Guatemala: Día del Profesional Humanista Educador.

Estados Unidos Estados Unidos: Día Nacional de los Profesionales de la Limpieza Doméstica

Estados Unidos Estados Unidos: Día Nacional del Registro de Votantes (2024).

Chile Chile: Día del Huaso y de la Chilenidad.

Australia Australia: Día de la Ciudadanía Australiana.

Argentina Argentina: Día del Psicopedagogo.

AngolaAngola Angola: Día de los Héroes.

Día del Patrimonio del Mercosur.

Día Mundial de la Fiebre Mediterránea Familiar.

Día Mundial de la Manta o Manta raya, pez cartilaginoso de los mares tropicales y subtropicales, para crear concienci…

Día Mundial de la Manta o Manta raya, pez cartilaginoso de los mares tropicales y subtropicales, para crear conciencia sobre su estado de conservación.

Día Mundial del Síndrome de Kleefstra.

Día Mundial de la Seguridad del Paciente (en inglés: World Patient Safety Day).Fecha para promover acciones para fome…

Día Mundial de la Seguridad del Paciente (en inglés: World Patient Safety Day).Fecha para promover acciones para fomentar la seguridad en la atención de la salud de personas en los centros de salud.