fascinated

The world has been fascinated by the collapse of the Mayans for decades. In reality, almost everything we thought we knew was wrong.

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They cultivated fields, raised livestock, built some of the most amazing buildings on the planet, developed a rich culture that included advanced astronomical knowledge that still intrigue today to the experts. The Mayans are one of the most fascinating civilizations on the planet. And rightly so. Without it it is impossible to tell the history of Central America. However, little by little and as technology allows us to delve into their secrets, we begin to understand something: much of what we thought we knew about the Mayans was wrong. And that includes its collapse. What happened to the Mayans? The question is very simple. His answer not so much anymore. As our knowledge of the Mayan civilization has expanded (thanks to resources such as LiDAR technology) has also mutated the idea that historians had of its decline. I remembered it recently in Guardian Marcus Haraldsson remembering what we know about Tikalone of the largest urban centers of the Mayans, located in what is now Guatemala. “Sudden and disastrous”? The most recent stele located at the site dates back to the year 869 ADwhich leaves the question of what happened in Tikal from that date on. For a time historians assessed the possibility of a “sudden and disastrous” collapse that marked its fate; But today that explanation seems increasingly distant. Now experts are leaning towards another option: a broad period of decline of around 200 years during which farmers moved north and south and powerful urban centers were abandoned in favor of settlements such as Chichén Itzá, Uxmal or Mayapán, towards the north of the Yucatán Peninsula. There is even talk of the period Classic Terminalwhich goes from the years 750 to 1050. Changing perspective. This perspective has been adapted over the decades and goes beyond the period of decline of the Mayan civilization. “We are no longer really talking about collapse, but about decline, transformation and reorganization of society, as well as a continuity of culture,” comment to Guardian Kenneth E. Seligson, associate professor of archeology at California State University (CSU). “There have been several similar changes in places like Rome. (But) we rarely talk about the great Roman collapse anymore because they re-emerged in various forms, just like the Mayans.” But… What happened? What exactly happened for many of the main Mayan settlements (not all) to begin to collapse towards the 9th and 10th centuries It remains a complex and highly discussed topic. Today the authors point out a combination of factors including changes in trade routes, adverse weather, severe and prolonged droughts and wars, among others. The truth is that in the middle of 2026, researchers continue collecting clues that helps us clear up unknowns about that period. The importance of water. You don’t have to go far back to read new discoveries that tell us precisely about the collapse of the Mayan civilization. Last August a group of scientists published a article in which they basically emphasized the “important role” that “prolonged droughts” played in the Mayan decline. For their study, the researchers analyzed a stalagmite located in a cave in the Yucatan, a true geological and archaeological treasure if its oxygen isotopes are analyzed. The examination revealed a series of periods of severe drought between 871 and 1021, during the Terminal Classic, stages marked by water shortages during which the Mayans found it “extremely difficult” to grow their crops. It may seem exaggerated, but the study revealed eight droughts during the rainy season that lasted at least three years. Not only that. The longest drought lasted about 13 years. Other previous studies, carried out from sediments collected in the Chichankanab lagoon or stalactites rescued in Belizehad already suggested the role that climate played in the Mayan collapse. Question of droughts (and something else). Months after that study, in November, Benjamin Gwinneth, from the Université de Montréal (UdeM), published another that helps complete the ‘photo’. The Canadian institution recalls that between 750 and 900 AD the population of the Mayan lowlands suffered “a significant demographic and political decline” that coincided with “episodes of intense drought.” What Gwinneth’s work questions is whether this collapse is explained only by the lack of water. Curiously, their research is also based on the analysis of sediment samples dating back to around 3,300 years ago. And what exactly did he do? Gwinneth dedicated himself to analyzing samples taken from Laguna Itzán, in present-day Guatemala, near an archaeological site Maya. To be precise, they focused on three “geochemical indicators” that reveal the evolution of fires, vegetation and population density in the area (something they estimate thanks to fecal stanols) for thousands of years. The first conclusion they obtained is that the first settlements appeared in the area 3,200 years ago and for centuries the Mayans cultivated, burned to clear forests and used the ashes as natural fertilizer. It also gradually increased the population of the area. Over time they even changed their “agricultural strategy”, dispensing with fire. A “stable” climate. The second conclusion (and this is the interesting part) is that, unlike Mayan populations located further north that did suffer “devastating droughts”, in Itzán the climate was relatively “stable” thanks in part to its geographical location, near the Cordillera. Curiously, that did not free Itzán from the crisis that they suffered in other areas of the Mayan world. The question is obvious: Why? If it kept raining there, what dragged them into the crisis? “Although there was no drought in the area, the population decreased during the Terminal Classic period. Indicators show a drastic drop, traces of agriculture disappear and the site was abandoned,” Gwinneth points out.which recalls that some archaeologists place the beginning of the Mayan collapse in the Itzán area. Why is it important? Because it suggests that drought (no matter how stubborn) is not enough on its own to explain the Mayan decline. “The answer lies in the interconnection of Mayan societies,” reflects the expert. “Cities did not exist in isolation. They formed a complex network of commercial ties, … Read more

For decades, the “00000” has fascinated Christmas Lottery players. The reason: the King’s Number

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All the Lottery numbers They have the same chance of winning the Christmas prize, but not all of them generate the same interest or are surrounded by the same halo of fascination. Perhaps one of the most enigmatic is the “00000”. And it is because the doubts it raisesquestions that resurface every December just like the nougats in the supermarkets, the perfume ads on TV or the LED lights in Vigo. Does it really exist? Can it be purchased? And above all… Is it true that it is the number that gives Lotteries and Betting from the State to the Royal House? There are those who are so sure of the latter that they even refer to “00000” as “The King’s Number”although (spoiler) it is not actually founded. Is 00000 played? Yeah. In the Christmas raffle they play 100,000 numbers different. From 00000 to 99,999. Both included. In fact, a quick search arrives to confirm that the first issue on the list has been sold this year in half a dozen of branches in Cádiz, Las Palmas, La Rioja, Valencia and Murcia. After all, there is nothing written about tastes (and superstitions): there are those who see 00000 as an ‘ugly’ number, a combination to avoid with little chance of receiving the jackpot, and those who bet their 20 euros on it as the winning horse. Have you ever played? No. Not at least if we’re talking about El Gordo or millionaire prizes, although that doesn’t make 00000 a special number either. Although the National Lottery traces its origins to 1812 (when the biggest prize amounted to 8,000 pesos) and the Christmas draw began to become popular 133 years agoin reality there are not so many numbers graced with El Gordo. That doesn’t mean that 00000 hasn’t made more than one person’s day (or Christmas). In 2014 he achieved a stones of 120 euros. It may not seem like a big deal, but that year the same administration in Logroño had sold 160 lucky tickets, leaving money in the pockets of its clients. 19,200 euros. In 1828 luck also happened to him. That year the lucky number was 00523. To many the figure may not be attractive because it is too ‘low’, but the truth is that the drums do not understand low or high numbers. Lotteries remember that Gordo touched figures between 0 and 10,000 61 times, 70 times to bills from 10,001 to 30,000 and 64 times to combinations ranging from 30,001 to 66,000. The King’s Number? One of the most famous myths about 00000 is that, precisely because it is the first in the numerical sequence, State Lotteries and Betting reserves a special destiny for it: a gift for the Royal House. You don’t have to look hard to find articles that remember a story that in reality is nothing more than that: a story, pure urban legend. “No. It is a baseless rumor. Institutionally, no tenth is given away,” they clarified already in 2011 from Lotteries to the newspaper ABC. It is not the only occasion in which he has had to deny the hoax. “No tenth with the number 00000 is given to the king for the Christmas draw,” insist to RTVE. The best proof is that the tenths of 00000 can be found in various administrations in the country and in 2014 the media even they interviewed to one of the winners with the 120 euro stone. Curiously, she decided to play that number and not another because she was convinced that it was the one they used in Zarzuela. Curious, commented… Feared? 00000 not only generates expectation for its history and myths. There is another detail that arouses the curiosity of Christmas Lottery lovers. In case he wins the first prize, if chance showers him with millions of euros… How the hell would it be sung? Would we hear the children of San Ildefonso hum “zero thousand zero hundred zero zero”? Would you opt for a simpler formula? theEconomist assures that 00000 would simply be sung as “zero”, without further flourishes. Although another thing (of course) is that their nerves play tricks on them on the 22nd. Images | SELAE 1 and 2 and Royal House In Xataka | ChatGPT You have the same chance of hitting the Lottery Jackpot as a witch reading the guts of a crow

We have been fascinated for years by the geniuses who come up with revolutionary innovations out of thin air. It’s always been smoke

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We live in times in which innovation, creative genius and the search for the next technological revolution are everything. We all want to know who it is the next Mark Zuckerberg, the next Steve Jobs either the next Albert Einstein. So much so that we project our way of looking at the world onto the past and, from time to time, texts appear that talk about the past. great forgotten geniuses to whom history did not do justice. But the truth is that most of the time, those great geniuses are rightly forgotten. Contrary to what we usually think, inventors usually do not exist. At least, if they are not lucky people. Smoke (or vapor) sellers Perhaps the best example is the steam engine. Which, in fact, must be one of the machines that has been invented the most times in History. The usual version is that the steam engine was developed and perfected in England between the end of the 17th century and the end of the 18th century. And that, on the other hand and always according to this version, was the engine of the industrial revolution. It’s not exact. Although archaeologists could surely give us previous examples, the aeolipilethe first “steam engine”, was invented by Heron of Alexandria in the first century after Christ. At first, and for many years, it had a recreational purpose (it is a sphere filled with water that, when heated, rotates). The first steam engine. But Heron too created automatic doors and hydraulic fountains which allow us to affirm, without risking too much, that Roman scientists had more than enough capacity to design Thomas Savery’s steam engine without messing up. Later, a century before, according to modern historiography, Mr. Savery invented the first steam engine, Jerónimo de Ayanz, a native of Navarra, also designed an incipient steam engine. Even before that we can find works by Florence Rivault, Taqui ad-Din or Giovanni Branca in which the steam engine was there, within reach. Windmills, mops and table football The same thing happens with water mills. Traditionally, it was considered that this type of mills had been discovered in the Middle Ages because it is the historical period from which we have material remains. But it’s not true. In ancient times, hydraulic mills were known, and very well. In fact, It is known that they also began to expand throughout the 1st century AD. And so on ad nauseum. The question is clear: no, the mop It was not invented in Spain, nor the lollipopsneither the table football. As evidently, and strictly speaking, neither the Spanish nor the Vikings ‘discovered‘America. A few days ago we discussed here in Xataka who was the “creator” of injectable insulin (Nicholas Paulescu either McLeod, Banting and Best?) in a reissue of the famous paradox of “if a tree falls in the middle of the forest and no one hears it, Has it made noise? Has it even fallen?” A key lesson we can draw from this is that, well, inventing something, discovering something, or developing genius is of no use. For hundreds of years we knew how to use water to produce physical work, but it wasn’t until the implosion of the slave system that mills really became popular. For fifteen hundred years we knew everything there was to know to create a steam engine. In fact, wealthy children had small miniature engines. It was not until the specific needs of British mining introduced Savery’s gadget that the steam engine set out to change the world. You don’t get here from nowhere. (Unsplash) Mops and tiled floors, lollipops and the decrease in infant mortality, table football and the incipient improvement in the quality of life of the working classes. Victor Hugo said that “there is nothing more powerful in the world than an idea whose time has come.” And he had to be right because “without their moment”, ideas are nothing. Technology, society and vice versa The cult of innovation, creative genius and disruptive inventions is one of those characteristics of our time that permeates everything. But, in general, innovations are only of degree. Also in the world of technology where we can almost always find a proof of concept that, twenty years before, already advanced the next revolution in the sector. Basically, as we examine technological history, we realize that seeing the world as a succession of great geniuses is very attractive, but not very realistic. Undoubtedly, there are people who advance the knowledge or technology of their time by decades, but if we want to get a real picture of how innovation has worked over the centuries, the strategy is different: think of history as a very long conversation full of opportunities, misunderstandings and moments of genius. There is no need to make it more attractive. Image | Md Mahdi In Xataka | One company has made the biggest breakthrough in toilet paper in 100 years. And its sales are skyrocketing In Xataka | We have a long-term problem with concrete. That’s why someone has come up with staple bricks that don’t need it.

We have been fascinated, confused and intrigued by Roman “concrete” for three decades. Pompeii is going to solve it for us

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Almost 2,000 years have passed since Mount Vesuvius unleashed a pyroclastic hell that devastated everything that was around it. That was what ended Pompeii, but it was also what gave it eternity. The Roman city began to be excavated in 1739 and, we believe, a third of the city is still underground. That’s why it still continues to surprise us. A work half done. That week in the summer of the year 79 AD, the first domes of the X insula of the IX regio was under construction. This is not surprising, of course. All of Pompeii had been under construction for almost two decades (since the earthquake of 62). However, the curious thing is that on the night of August 24, the workers were caught with everything bogged down. Plumb lines, chisels and weights; stacked tiles, tufa bricks; amphorae filled with lime, reused demolition materials and piles of pozzolans scattered on the ground. Everything has remained there, untouched, until a team from the MIT Department of Civil Engineering found and cataloged them. “The weapon of crime.” By reconstructing the scene and studying the processes, researchers concluded that these masons left incontrovertible evidence of how they mixed “hot” quicklime with volcanic ash to create concrete capable of repairing itself. In fact, as Miguel Ángel Criado collectsthings go further: the chemical and crystallographic analysis of the materials reveals quicklime (calcium oxide) in the structural concrete and slaked lime (calcium hydroxide) in the finishing mortars, thus confirming a double differentiated use. Have we finally found the key to Roman concrete? A recurring question. In 2023, I already said that “Every so often, the world rediscovers Roman concrete and is amazed by the durability of a material that allows Agrippa’s Pantheon to stand for 2,000 years.” “While modern concrete cracks after a few decades,” they usually add. By the way, “almost with the same regularity, there is some scientist or engineer who claims to have found the key secret to making this so.” But the truth, the true truth, is that despite its undoubted historiographical interest (and its potential for illuminate our knowledge of the masonry practices of 1st century Rome), the hype is always unjustified. The two mistakes of Roman concrete. When talking about Roman concrete, a lot of mistakes are usually made, but there are two recurring ones: the first is “the survivor’s bias.” As Manuel F. Herrador reminded usprofessor of Structural Concrete at the School of Civil Engineering of the Universidade da Coruña, the idea of ​​the extraordinary quality of Roman concrete comes from studying, precisely, the best structures they made, the ones that have been best preserved. Instead, most of what the Romans built has already completely disappeared and cannot be studied. The second error is even more basic and is based on ignoring that with Roman concrete we couldn’t do even a tenth of the things we do today with modern concrete. For example, today we can make long and relatively narrow “pieces” thanks to reinforced concrete. That was impossible with Roman construction techniques and is what makes our structures corrode faster. Who wouldn’t like a Roman concrete…? We already knew that Roman concrete is not a single miraculous material, but a family of recipes adapted to local environments and resources (ports, temples, roads, thermal baths). This finding only confirms it; but, in a calculated way, it is used to take advantage of the expectation that this material generates in the public imagination. And if it weren’t for making invisible the excellent work of contemporary researchers, it wouldn’t be a problem either. Because what is evident is that we do not make “Roman-style concrete” not because of ignorance; we don’t do it because we don’t want tobecause it does not serve the world we want to build. Image | Andy Holmes In Xataka | We have a problem with concrete: the same technology that allowed us to build the modern world threatens its future

Archaeologists have been fascinated by the largest temple in the Mayan world for years. Now we know that it is a map of the cosmos

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Our knowledge about the first Mesoamericans they just widened. And in a big way. A team led by professors from the University of Arizona has published a study with new revelations about Aguada Phoenixa site located east of the state of Tabasco, Mexico, near the border with Guatemala. Said like that, it may not seem like a big deal, but Aguada Fénix is ​​not just any place. When it was discovered, about five years ago, showed up as “the largest and oldest Mayan monument ever discovered.” Now we know that he also had some surprises in store for us. What is Aguada Fénix? To answer that question we have to go back a few years, to 2017, when with the help of lidar technology A team led by two professors from the University of Arizona (UA), Takeshi Inomata and Daniela Triadan, identified an ancient monument that until then had gone unnoticed in the state of Tabasco, very close to Guatemala. The laser beams, capable of passing through tree canopies and revealing three-dimensional shapes, showed nothing more nor less than a monument of more than 1,400 meters long, about 400 wide and between 9 and 15 high. That’s right from the start, because if you go beyond the central platform the set occupies much more spacewith roads and enormous pipelines connected to a nearby lagoon. Why is it important? Because of its reach. And historical relevance. When the archaeologists began to excavate and resorted to radiocarbon dating, they had another surprise: the complex had been built between the years 1000 and 800 BC, which was older than the archaeological site of Ceibalin Guatemala, considered the oldest ceremonial center. Aguada Fénix therefore left a double surprise for the researchers, as confirmed in 2020when announcing the discovery, the University of Arizona itself: not only was previous Ceibal, but stood out in size. In fact, it became the “largest known monument in Mayan history”, far surpassing the pyramids and palaces built during subsequent centuries. And why is it news now? Because researchers have not been content with presenting Aguada Fénix to the world. Over the last few years They have continued investigatingexpanding our knowledge of a complex that actually extends far beyond the central platform and the nine roads initially identified. Thanks to tools such as LIDAR, experts have found out that it extends kilometers further and detected an extensive hydraulic system with channels 35 meters wide and five meters deep with a dam. Have they discovered anything else? Yes. To begin with, Aguada Fénix probably served as a very special ceremonial center, a “cosmogram” that represented the order of the universe as its creators understood it. During the excavations they discovered a cross-shaped well in which they recovered ceremonial artifacts, pieces that offer us “unprecedented information about the first Mayan rituals.” To be more precise, they found jade axes and ornaments showing a crocodile, a bird and a woman giving birth. “It is like a model of the cosmos. They thought that it is ordered according to this cruciform pattern and that this is linked to the order of time,” adds Inomata. Ritual decorations? Not only that. When they reached the bottom of the pit, the researchers located another smaller cruciform structure with a new surprise. There they found mineral pigments, mounds of blue, green and yellow tones that mark cardinal points. “We knew that there are colors linked to directions, and that is important for all Mesoamerican peoples, even the Native American peoples of North America,” comments Inomata. “But we’ve never had pigments arranged this way. This is the first case where we found them associated with each specific direction. It was exciting.” And what were they doing there? Archaeologists believe that the different pigments and other materials were arranged as an offering and then covered with sand and earth. They also verified that radiocarbon dating dates them to around 900-845 BC. With all this data on the table, they do not rule out that people later returned to the monument to perform rituals and deposit objects. Another revealing fact is that the central axis of the Aguada Fénix monument seems to align with the sunrise on two very specific dates: October 17 and February 24, 130 days apart, which suggests to experts that it represented half of the Mesoamerican ritual cycle of 260 days. Inomata remembers that it would not be exceptional. The layout would agree with that of other Mayan sites. Why is it so relevant? Beyond the scope of the site itself, the new findings are relevant for what they tell us about the ancient inhabitants of the region. For a start, remember from the UAdebunks the old theory that Mesoamericans grew gradually and dedicated themselves to building increasingly larger settlements until they reached Tikal in Guatemala or Teotihuacán in central Mexico. Aguada Fénix is ​​long before the heyday of both enclaves, which does not mean that it is “as big or even bigger than them.” “What we are discovering is that there was a ‘big bang’ of construction at the beginning of 1,000 BC that no one really knew about,” reflects Inomata. With the discovery of the state of Tabasco it is confirmed that “from the beginning” there was large-scale planning and construction. Aguada Fénix is ​​so old in fact and anticipates so much of the Mayan apogee (around the 3rd-10th centuries AD) that experts are not sure whether its builders spoke Mayan languages. In any case they do admit “a strong cultural continuity” with later communities. How the hell did they build it? That is another of the most suggestive conclusions of the study that Inmoata and his colleagues have published in Science Advances. In it they slip a curious theory: although it is known that other enclaves, such as Tikal, in Guatemala, were governed by powerful monarchs, in the case of Aguada Fénix there are no indications that speak of powerful rulers with the ability to force their subjects to work. That does not mean … Read more

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