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September 13

Holidays

11 holidays recorded on September 13 throughout history

Quote of the Day

“A competent leader can get efficient service from poor troops; an incapable leader can demoralize the best of troops.”

John J. Pershing
Antiquity 11

The Eastern Orthodox calendar marks today with saints whose names most of the Western world has never encountered — f…

The Eastern Orthodox calendar marks today with saints whose names most of the Western world has never encountered — figures venerated for centuries in Constantinople, Alexandria, Antioch, and Jerusalem while Rome charted its own calendar of the holy. Two branches of the same faith, counting the same days differently, honoring overlapping but distinct lists of the same God's friends. The split has lasted nearly a thousand years and shows no signs of closing.

Cacao was currency before it was candy.

Cacao was currency before it was candy. The Aztecs used cacao beans to pay wages and buy goods, and they drank it cold, bitter, and spiced with chili — nothing like what came later. Chocolate didn't meet sugar until Europeans got involved in the 16th century. The first chocolate bar wasn't made until 1847. International Chocolate Day lands on September 13 — the birthday of Milton Hershey — but the industry producing it today relies on supply chains where child labor remains a documented, ongoing problem. The sweetness has always had a cost.

The Assyrian Church of the East honors the Feast of the Cross, a solemn remembrance of the instrument that defined Ch…

The Assyrian Church of the East honors the Feast of the Cross, a solemn remembrance of the instrument that defined Christian redemption. This observance also commemorates saints like John Chrysostom and Wulfthryth, whose lives shaped early church theology and monastic discipline across centuries.

Programmers worldwide celebrate their craft on the 256th day of the year, a nod to the number of distinct values repr…

Programmers worldwide celebrate their craft on the 256th day of the year, a nod to the number of distinct values representable in an eight-bit byte. This specific date honors the technical precision required for computing, transforming a niche professional milestone into a global recognition of the binary logic that powers our modern infrastructure.

Roman magistrates and senators gathered at the Temple of Jupiter Optimus Maximus to share a ritual feast during the L…

Roman magistrates and senators gathered at the Temple of Jupiter Optimus Maximus to share a ritual feast during the Ludi Romani. By inviting the god to dine alongside the city's elite, the Republic reinforced the divine sanction of its political leadership and ensured the favor of Rome's most powerful deity for the coming year.

Six military cadets — the youngest was 13 — refused to retreat when American forces stormed Chapultepec Castle in 1847.

Six military cadets — the youngest was 13 — refused to retreat when American forces stormed Chapultepec Castle in 1847. One of them, Juan Escutia, allegedly wrapped himself in the Mexican flag and jumped from the ramparts rather than let it be captured. Mexico lost that battle and half its territory in the war that followed. But it kept the story. Every September 13th, the president bows before the monument to los Niños Héroes. The boys who lost became the symbol of the nation that survived.

Roman magistrates and senators reclined on couches in the Temple of Jupiter Optimus Maximus to share a ritual feast w…

Roman magistrates and senators reclined on couches in the Temple of Jupiter Optimus Maximus to share a ritual feast with the god himself. By placing an image of Jupiter at the head of the table, the state reinforced the divine sanction of its leadership and solidified the religious hierarchy underpinning the Roman Republic.

John Chrysostom was Archbishop of Constantinople in the early 5th century and could not stop himself from preaching u…

John Chrysostom was Archbishop of Constantinople in the early 5th century and could not stop himself from preaching uncomfortable things to powerful people. He criticized Empress Eudoxia by name from the pulpit. He sold off the bishop's palace furniture to fund hospitals. He was exiled twice — the second time he was marched on foot through winter mountains until he died of exhaustion in 407. He left behind 700 surviving sermons, more than any other early church figure. The man the church made a saint was killed by people who ran the same church.

Programmers across Russia celebrate their craft on the 256th day of the year, a nod to the number of distinct values …

Programmers across Russia celebrate their craft on the 256th day of the year, a nod to the number of distinct values representable by an eight-bit byte. This specific date honors the technical foundation of computing, acknowledging the professionals who build the digital infrastructure powering modern global communication and data processing.

Mauritius celebrates Engineers on a day that reflects something easy to miss about the island: it has no significant …

Mauritius celebrates Engineers on a day that reflects something easy to miss about the island: it has no significant natural resources beyond its location and its people. The Mauritian economy built itself on sugar, then textiles, then financial services, then technology — each transition requiring the kind of technical problem-solving that engineers provide. For a country of 1.3 million people in the middle of the Indian Ocean, engineering isn't a profession. It's practically a survival strategy.

Roald Dahl kept a writing hut at the bottom of his garden in Great Missenden — a cramped, unheated shed where he'd si…

Roald Dahl kept a writing hut at the bottom of his garden in Great Missenden — a cramped, unheated shed where he'd sit in a sleeping bag with a board across the armrests of his chair and write in pencil on yellow legal paper. Every day. Two hours in the morning, two in the afternoon. The BFG, Matilda, James, Charlie — all came from that shed. It's still there.