Latest / The History of Portugal: The Small Nation That Built a Global Empire — Fexingo History / The Lisbon Earthquake of 1755
Transcript
- Lucas: So we've talked a lot about Portugal building an empire, but today I want to look at the moment when nature nearly wiped the capital off the map. The Lisbon earthquake of 1755. Luna: Oh, I've heard about that — wasn't it on a religious holiday? Lucas: Exactly. November 1st, 1755 — All Saints' Day. The churches were packed. At about 9:40 in the morning, the first shock hit. It lasted somewhere between three and six minutes, which is an eternity for an earthquake. The city had been built on unstable ground, on sand and alluvial soil, so the shaking was catastrophic. Lucas: But it wasn't just the quake. Forty minutes later, a tsunami swept up the Tagus River, drowning people who had fled to the docks. And then fires broke out across the city that burned for nearly a week. Luna: So three disasters in one day. Lucas: Exactly. Modern estimates put the death toll between 30,000 and 50,000 out of a population of about 200,000. It was one of the deadliest earthquakes in European history. And it happened right at the height of the Enlightenment, so it sparked a massive intellectual crisis across Europe. Lucas: You had philosophers and theologians asking: how could a loving God allow this, especially on a holy day when people were at Mass? Voltaire wrote about it in 'Candide', his satire of optimism. He used the earthquake to mock Leibniz's idea that we live in 'the best of all possible worlds'. Luna: I remember that — 'if this is the best possible world, what are the others like?' Lucas: Exactly the line. But while the philosophers debated, one man in Lisbon had a very practical response: Sebastião José de Carvalho e Melo, later known as the Marquis of Pombal. He was the king's chief minister, and he reportedly said, 'What do we do now? Bury the dead and feed the living.' Luna: That's remarkably pragmatic for the time. Lucas: It was. King José I developed a phobia of enclosed spaces after the quake, so he moved his court to tents. But Pombal took charge. He ordered the army to surround the city to prevent looting, set up emergency hospitals, and organized the burial of bodies to prevent disease. He even hanged four looters publicly to deter others. Lucas: And then came the reconstruction. Pombal didn't just rebuild Lisbon — he rebuilt it as a modern, Enlightenment city. He commissioned new wide streets, uniform architecture, and a grid layout that was revolutionary for the time. The new downtown, called the Baixa Pombalina, was designed with earthquake resilience in mind. Luna: Wait — they had earthquake engineering in the 18th century? Lucas: They did after this. Pombal ordered a questionnaire sent to every parish in the kingdom asking about the quake's effects — when it started, how long it lasted, how many buildings collapsed. Some historians call that the first scientific survey of an earthquake. And based on what they learned, they developed the 'gaiola' — a wooden cage frame that was built inside stone walls to give them flexibility. The buildings were also limited to four stories, with wider streets to prevent fire spreading. Luna: So that's why Lisbon's downtown has that distinct look. Lucas: Exactly. The Baixa is still a grid of straight, parallel streets with the same style of neoclassical buildings. It's one of the first examples of urban planning in modern Europe, and it's all thanks to the earthquake. Pombal also moved the royal palace and the key ministries to the west, to a new square called the Praça do Comércio, which opened onto the Tagus. Luna: That's the one with the big arch, right? The Arco da Rua Augusta. Lucas: Yes. So the earthquake didn't just destroy Lisbon — it created a new Lisbon. But it also had a dark side. Pombal used the chaos to consolidate power. He blamed the earthquake on the Jesuits, among others, and used it as a pretext to expel them from Portugal and the empire in 1759. He also cracked down on the old nobility, which had been critical of his reforms. Lucas: In a way, the earthquake enabled the Enlightenment in Portugal, but through an authoritarian lens. Pombal was a reformer, but he was also a dictator. He centralized power, modernized the economy, and rebuilt the capital, but he did it all with an iron fist. Luna: So the same earthquake that inspired Voltaire's critique of optimism also gave Pombal the chance to reshape Portugal. Lucas: Exactly. And that tension — between reason and faith, between progress and oppression — is really the story of the Enlightenment in Portugal. The earthquake forced people to ask hard questions, but the answers weren't always comfortable. Luna: I'm glad we're covering this. It's a side of Portuguese history I hadn't really thought about. Lucas: If today was actually useful to you, the way these stay ad-free is listener support. You can find us at buy me a coffee dot com slash fexingo. Luna: Yeah, it's a small way to keep these conversations going. Lucas: So to go back to the rebuilding — one of the most fascinating things about the Pombaline reconstruction was the use of model buildings. They built full-scale wooden models of the new buildings and showed them to the public before construction, to get feedback. That was incredibly forward-thinking. Luna: Almost like urban planning prototyping. Lucas: Exactly. And the new city was designed to be fireproof — stone walls, tile roofs, no wooden eaves. They even standardized the height of the buildings to ensure uniform sunlight and air circulation. It was a complete rethinking of what a city could be. Lucas: There's also a lesser-known aspect: the earthquake had a huge impact on the Portuguese empire. The reconstruction was staggeringly expensive. Pombal had to raise taxes, which caused resentment. But it also forced Portugal to look inward, to focus on rebuilding at home rather than just extracting wealth from colonies. Some historians argue it marked the beginning of the end of Portugal's imperial golden age. Luna: So the earthquake reshaped not just Lisbon, but the entire empire. Lucas: In many ways, yes. The disaster exposed the fragility of the empire's finances, and the cost of rebuilding diverted resources that might have gone to Brazil or India. It also shifted power toward Pombal, who used the crisis to centralize authority. The old Lisbon, with its medieval streets and religious institutions, was replaced by a rational, secular city that reflected the Enlightenment ideals of order and progress. Luna: But at a huge human cost. Lucas: Absolutely. And that's the paradox. The Lisbon earthquake is a story of destruction and rebirth, of tragedy and innovation, of faith shaken and reason tested. It's a moment that defined modern Portugal, and it's a reminder that history is often shaped by the forces we least expect.