https://ecosdopassado.com.br/en/ History's mysteries, told with the sources on the table. en Tue, 03 Nov 2026 02:14:55 -0300 https://ecosdopassado.com.br/en/unexplained-events/tunguska-event-explosion-no-crater/ https://ecosdopassado.com.br/en/unexplained-events/tunguska-event-explosion-no-crater/ Mon, 02 Nov 2026 09:00:00 -0300 Redação Ecos do Passado In 1908, a blast a thousand times stronger than Hiroshima leveled the Siberian taiga. It left no crater and no fragments. https://ecosdopassado.com.br/en/enigmatic-places/snake-island-queimada-grande-brazil/ https://ecosdopassado.com.br/en/enigmatic-places/snake-island-queimada-grande-brazil/ Mon, 02 Nov 2026 08:50:00 -0300 Redação Ecos do Passado A snake that lives nowhere else, a lighthouse that runs on its own and the legend of a keeper: what is documented and what was never confirmed. https://ecosdopassado.com.br/en/shadowy-figures/count-of-saint-germain/ https://ecosdopassado.com.br/en/shadowy-figures/count-of-saint-germain/ Mon, 02 Nov 2026 08:40:00 -0300 Redação Ecos do Passado He spoke many languages, mastered chemistry and told stories from centuries past as if he had lived them. To this day, no one knows for sure who he was. https://ecosdopassado.com.br/en/unexplained-events/wow-signal-72-seconds-cosmic-silence/ https://ecosdopassado.com.br/en/unexplained-events/wow-signal-72-seconds-cosmic-silence/ Mon, 02 Nov 2026 08:30:00 -0300 Redação Ecos do Passado A strong, narrowband radio signal at the frequency of hydrogen. It lasted 72 seconds in 1977 and was never picked up again. https://ecosdopassado.com.br/en/enigmatic-places/gobekli-tepe-temple-before-history/ https://ecosdopassado.com.br/en/enigmatic-places/gobekli-tepe-temple-before-history/ Mon, 02 Nov 2026 08:20:00 -0300 Redação Ecos do Passado Pillars up to 5.5 meters tall, carved with animals and raised by hunter-gatherers millennia before writing and the first city. https://ecosdopassado.com.br/en/shadowy-figures/kaspar-hauser-boy-from-nowhere/ https://ecosdopassado.com.br/en/shadowy-figures/kaspar-hauser-boy-from-nowhere/ Mon, 02 Nov 2026 08:10:00 -0300 Redação Ecos do Passado He arrived with two anonymous letters and a single memorized sentence. Nearly two centuries later, no one has proved where he came from or who wounded him. https://ecosdopassado.com.br/en/unexplained-events/flight-mh370-what-the-data-reveals/ https://ecosdopassado.com.br/en/unexplained-events/flight-mh370-what-the-data-reveals/ Mon, 02 Nov 2026 08:00:00 -0300 Redação Ecos do Passado A Boeing 777 with 239 people aboard vanished from radar in 2014. Pings to a satellite showed where it went. The why is still missing. https://ecosdopassado.com.br/en/enigmatic-places/nazca-lines-who-drew-them/ https://ecosdopassado.com.br/en/enigmatic-places/nazca-lines-who-drew-them/ Mon, 02 Nov 2026 07:50:00 -0300 Redação Ecos do Passado A 96-meter hummingbird, a monkey with a spiral tail and more than 800 straight lines: what we know about who made the Nazca geoglyphs, and why. https://ecosdopassado.com.br/en/shadowy-figures/rasputin-secret-russian-files/ https://ecosdopassado.com.br/en/shadowy-figures/rasputin-secret-russian-files/ Mon, 02 Nov 2026 07:40:00 -0300 Redação Ecos do Passado A Siberian peasant with no schooling made his way to the center of power in tsarist Russia. What the documents say about his influence, his politics and his death. https://ecosdopassado.com.br/en/unexplained-events/voynich-manuscript-language-or-code/ https://ecosdopassado.com.br/en/unexplained-events/voynich-manuscript-language-or-code/ Mon, 02 Nov 2026 07:30:00 -0300 Redação Ecos do Passado Plants that do not exist, star diagrams, and a text no codebreaker has managed to read. The parchment dates to the early 15th century. https://ecosdopassado.com.br/en/enigmatic-places/great-pyramid-giza-hidden-chambers/ https://ecosdopassado.com.br/en/enigmatic-places/great-pyramid-giza-hidden-chambers/ Mon, 02 Nov 2026 07:20:00 -0300 Redação Ecos do Passado Particles arriving from space revealed two unknown empty spaces inside a monument that archaeologists have studied for more than 150 years. https://ecosdopassado.com.br/en/shadowy-figures/nikola-tesla-erased-experiments/ https://ecosdopassado.com.br/en/shadowy-figures/nikola-tesla-erased-experiments/ Mon, 02 Nov 2026 07:10:00 -0300 Redação Ecos do Passado The inventor who helped electrify the world died poor in a hotel room. What the released documents say about the teleforce ray and his final projects. https://ecosdopassado.com.br/en/unexplained-events/dyatlov-pass-incident/ https://ecosdopassado.com.br/en/unexplained-events/dyatlov-pass-incident/ Mon, 02 Nov 2026 07:00:00 -0300 Redação Ecos do Passado They left the tent at night, in cold that reached -30°C, without the clothes for it. Some had fractures the medical examiner compared to the impact of a car. https://ecosdopassado.com.br/en/enigmatic-places/sunken-city-dwarka-india/ https://ecosdopassado.com.br/en/enigmatic-places/sunken-city-dwarka-india/ Mon, 02 Nov 2026 06:50:00 -0300 Redação Ecos do Passado The epic says the ocean swallowed Krishna's city. Off the coast of Gujarat there are real submerged ruins, and a far older find that scientists met with skepticism. https://ecosdopassado.com.br/en/shadowy-figures/man-in-the-iron-mask/ https://ecosdopassado.com.br/en/shadowy-figures/man-in-the-iron-mask/ Mon, 02 Nov 2026 06:40:00 -0300 Redação Ecos do Passado For 34 years, the France of Louis XIV held a prisoner whose name no one was allowed to know. Three centuries of research have not revealed who he was. https://ecosdopassado.com.br/en/unexplained-events/dancing-plague-1518-strasbourg/ https://ecosdopassado.com.br/en/unexplained-events/dancing-plague-1518-strasbourg/ Mon, 02 Nov 2026 06:30:00 -0300 Redação Ecos do Passado Physicians, chroniclers and the city council put the outbreak on record. Five centuries later, there is still no consensus on what caused it. https://ecosdopassado.com.br/en/enigmatic-places/nan-madol-city-on-the-ocean/ https://ecosdopassado.com.br/en/enigmatic-places/nan-madol-city-on-the-ocean/ Mon, 02 Nov 2026 06:20:00 -0300 Redação Ecos do Passado Walls up to 7.5 meters high, with no mortar, on artificial islets in the middle of the Pacific. The dynasty that built them fell in 1628; where part of the stone came from is still unknown. https://ecosdopassado.com.br/en/shadowy-figures/cagliostro-alchemist-or-charlatan/ https://ecosdopassado.com.br/en/shadowy-figures/cagliostro-alchemist-or-charlatan/ Mon, 02 Nov 2026 06:10:00 -0300 Redação Ecos do Passado Born Giuseppe Balsamo, the son of a bankrupt Palermo merchant, he became a count, was received by kings, and died in the dungeons of San Leo. https://ecosdopassado.com.br/en/unexplained-events/battle-of-los-angeles-1942/ https://ecosdopassado.com.br/en/unexplained-events/battle-of-los-angeles-1942/ Mon, 02 Nov 2026 06:00:00 -0300 Redação Ecos do Passado Less than three months after Pearl Harbor, searchlights and anti-aircraft guns filled the sky over Los Angeles. To this day, no one knows for sure what they were shooting at. https://ecosdopassado.com.br/en/enigmatic-places/derinkuyu-underground-city-turkey/ https://ecosdopassado.com.br/en/enigmatic-places/derinkuyu-underground-city-turkey/ Mon, 02 Nov 2026 05:50:00 -0300 Redação Ecos do Passado Beneath an ordinary house in Cappadocia lay tunnels, churches, stables and wells for thousands of people. And no one yet knows how much remains to be mapped.