Friday, October 10, 2025

 

New book explores ‘nine lives’ of Christopher Columbus



Matthew Restall’s new book examines diverging perspectives on Italian explorer’s life and legacy



Penn State





UNIVERSITY PARK, Pa. — In all his years as an expert in Latin American history, Matthew Restall never had much interest in Christopher Columbus as a subject.

“It just never seemed a current or compelling enough topic to write an entire book about — it seemed a bit old-fashioned,” said Restall, Edwin Erle Sparks Professor of Colonial Latin American History, Anthropology, and Women's Gender and Sexuality Studies and director of Latin American Studies in Penn State’s College of the Liberal Arts.

But a trip to Spain changed his mind and ultimately yielded his new book, “The Nine Lives of Christopher Columbus.” Published by W.W. Norton & Company, the book traces Columbus’ life and his many afterlives in terms of public perception. Along the way, Restall separates fact from fiction and seeks to understand why Columbus continues to mean different things to different people.

Columbus had always been a part of Restall’s teaching and scholarship through the years, but it wasn’t until he visited some friends in Galicia, Spain, a few years ago that he decided a full-fledged project was in order.

While there, Restall met some neighbors of his friends who, after learning what he did for a living, asked, “Are you here because Columbus was a Gallego?” Puzzled, he inquired further, and they told him that, contrary to the historical record of Columbus being born in Genoa, Italy, he was actually a Galician nobleman who faked his own death in 1492 and changed his name.

“This was not something I took seriously,” Restall said. “But I was kind of curious, and thought, ‘How widespread is this?’ Turns out, it was a very widespread belief. This is something woven into the fabric of how the people of this region think about their history in relation to Columbus. So, I knew I had to investigate it.”

The “nine lives” concept came to Restall quickly, and he made it a mission to find the “many Columbuses” who permeate the public consciousness.

The first part of the book is what Restall describes as a straightforward biography charting Columbus’ early life as a “complete nobody” from Genoa to his social ascent following his Spanish Crown-financed voyages across the Atlantic to the Caribbean and Central and South America, which opened the way for European exploration and colonization of the Americas.

Through his research in Genoa and other places, Restall said he was able to gain a better sense of Columbus the man than he previously thought possible.

“He was extraordinarily self-centered and narcissistic — although he was not a monster compared to somebody like Cortés, who I came to the conclusion was absolutely a monster,” he said, referring to the 16th-century Spanish conquistador whose exploits Restall covered in books including “When Montezuma Met Cortés: The True Story of the Meeting that Changed History,” published by Ecco in 2018. “And Columbus had a lot of tenacity, which in the American telling of Columbus was seen as an admirable trait. He didn’t give up because his ego was so wrapped up in the idea of achieving social mobility. And he achieved it.”

The rest of the book is devoted to exploring Columbus the myth, which Restall said went into high gear in the years following American independence, when he was lionized as a patriotic symbol of excellence nearly on the same level as George Washington.

“He and Washington became almost equal figures,” Restall said. “What’s the U.S. capital? Washington, in the District of Columbia.”

Columbus’ adulation in the United States had reached its zenith by around 1892, when the country celebrated the 400th anniversary of Columbus’s maiden voyage and the Pledge of Allegiance became a popular means of getting children “socialized to be good Americans,” Restall said.

It was also around this time that the first huge wave of Italian immigrants came to the U.S. Subjected to fervent prejudice at first, they went looking for ways to show they were enthusiastically assimilating into the American melting pot.

Enter Columbus, Restall said.

“What Italian Americans discovered is that the United States had elevated Columbus as this extraordinarily heroic patriotic figure,” Restall said. “They totally identified with him and incorporated him and essentially created another Columbus.”

As Italian Americans made their own significant contributions to American culture throughout the 20th century, Columbus became a point of pride through groups like the Knights of Columbus, the designation of Columbus Day as a federal holiday on the second Monday of October and the erecting of numerous Columbus statues in cities across the country.

However, another Columbus iteration began to take shape around the 500th anniversary — this one a more menacing version who was responsible for the subjugation and deaths of countless Indigenous people. Many places, including Penn State, now observe the second Monday of October as Indigenous Peoples Day.

“There’s a whole other generation from 1992 onward that sees Columbus through the prism of those who are more sympathetic toward Indigenous people,” Restall said. “For them, Columbus is bad and the holiday needed to be changed. But for Italian Americans, that had nothing to do with their own experience in America.”

Given the passions and historical contexts of both sides of the argument, Restall said it was critical that the book take a more nuanced stance on the issue. And when it comes to whether the national holiday should be Columbus Day or Indigenous Peoples Day, he comes down on the side of, “Why can’t there be both?”

“It should be up to individual people, places and organizations to determine that for themselves,” Restall said. “I can’t see a better solution. Everyone’s not going to be happy, but I think there’s a place for common ground. It’s important to explain why it’s important to both sides because these groups are talking about a different person — and ‘The Nine Lives of Christopher Columbus’ is really an argument that there are different Columbuses.”


 

Hippos lived in Europe during the last ice age




University of Potsdam

Hippo 

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Hippos lived at the Upper Rhine in the same time frame as mammoths. In the Reiss-Engelhorn-Museen a hippo reconstruction meets a mammoth skeleton.

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Credit: Rebecca Kind




Hippos, today restricted to sub-Saharan Africa, survived in central Europe far longer than previously assumed. Analyses of bone finds demonstrate that hippos inhabited the Upper Rhine Graben sometime between approximately 47,000 and 31,000 years ago, well into the last ice age. An international research team lead by the University of Potsdam and the Reiss-Engelhorn-Museen Mannheim with the Curt-Engelhorn-Zentrum Archäometrie now published a study on this in the journal Current Biology.

Until now, it was believed that common hippos (Hippopotamus amphibius) became extinct in central Europe around 115,000 years ago, with the end of the last interglacial period. A new study, conducted by researchers from the University of Potsdam, the Reiss-Engelhorn-Museen Mannheim, the Curt-Engelhorn-Zentrum Archäometrie Mannheim, ETH Zurich and international partners, demonstrates that hippos inhabited the Upper Rhine Graben in southwestern Germany sometime between approximately 47,000 and 31,000 years ago, i.e. during the middle of the last ice age.

The Upper Rhine Graben is an important continental climate archive. Animal bones that have survived for thousands of years in gravel and sand deposits are a valuable source for research. “It's amazing how well the bones have been preserved. At many skeletal remains it was possible to take samples suitable for analysis – that is not a given after such a long time,” emphasizes Dr. Ronny Friedrich, expert in age determination at the Curt-Engelhorn-Zentrum Archäometrie.

The team examined numerous hippopotamus finds and combined paleogenomic and radiocarbon analyses. Ancient DNA sequencing showed that European ice age hippos are closely related to African hippos living today and belong to the same species. Radiocarbon dating confirmed their presence during a milder climatic phase in the middle Weichselian glaciation.

Additional genome-wide analysis indicated very low genetic diversity, suggesting that the population in the Upper Rhine Graben was small and isolated. These results and further fossil evidence show that heat-loving hippos appeared in the same time frame as species adapted to cold temperatures, such as mammoths and woolly rhinos.

“The results demonstrate that hippos did not vanish from middle Europe at the end of the last interglacial, as previously assumed,” summarizes first author Dr. Patrick Arnold. “Therefore, we should re-analyze other continental European hippo fossils traditionally attributed to the last interglacial period.”

Prof. Dr. Wilfried Rosendahl, general director of the Reiss-Engelhorn-Museen Mannheim and project leader of “Eiszeitfenster Oberrheingraben” is convinced that ice age research still holds many exciting questions: “The current study provides important new insights which impressively prove that ice age was not the same everywhere, but local peculiarities taken together form a complex overall picture – similar to a puzzle. It would now be interesting and important to further examine other heat-loving animal species, attributed so far to the last interglacial.”

The study was conducted within the framework of the project “Eiszeitfenster Oberrheingraben”, funded by the Klaus Tschira Stiftung Heidelberg. The interdisciplinary project contributes to understanding climate and environmental developments in the Upper Rhine Graben and southwestern Germany over the last 400,000 years. Objects of investigation are ice age bone finds from the Reis collection, located at the Reiss-Engelhorn-Museen.

 

The publication online: Arnold et al., 2025, Ancient DNA and dating evidence for the dispersal of hippos into central Europe during the last glacial, Current Biology 35, 1–9: https://www.cell.com/current-biology/fulltext/S0960-9822(25)01205-9

 

Photos:
2025_091_NK24_Hippo_Mandible_rem: Left mandible fragment of a female hippopotamus from Reiss-Engelhorn-Museen Mannheim, Slg. Reis Hippopotamus sp. Age dating: Between 46,000 and 48,300 years ago. Location: Bobenheim-Roxheim, Rhine-Palatinate district. Photo: Rebecca Kind

2025_091_EISZEIT300_Flusspferd_rem: Hippos lived at the Upper Rhine in the same time frame as mammoths. In the Reiss-Engelhorn-Museen a hippo reconstruction meets a mammoth skeleton. Photo: Rebecca Kind

 

Left mandible fragment of a female hippopotamus from Reiss-Engelhorn-Museen Mannheim, Slg. Reis Hippopotamus sp. Age dating: Between 46,000 and 48,300 years ago. Location: Bobenheim-Roxheim, Rhine-Palatinate district.

Credit

Rebecca Kind

 

Solar-powered method lights the way to a ‘de-fossilized’ chemical industry




University of Cambridge

Solar-powered method lights the way to a ‘de-fossilised’ chemical industry 

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Semi-artificial organic photocathode (Front view)

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Credit: Celine Yeung





Researchers have demonstrated a new and sustainable way to make the chemicals that are the basis of thousands of products – from plastics to cosmetics – we use every day.

Hundreds of thousands of chemicals are manufactured by the chemical industry, which transforms raw materials – usually fossil fuels – into useful end products. Due to its size and its use of fossil fuel feedstocks, the chemical industry is responsible for roughly 6% of global carbon emissions.

But researchers, led by the University of Cambridge, are developing new methods that could one day lead to the ‘de-fossilisation’ of this important sector.

They have developed a hybrid device that combines light-harvesting organic polymers with bacterial enzymes to convert sunlight, water and carbon dioxide into formate, a fuel that can drive further chemical transformations.

Their ‘semi-artificial leaf’ mimics photosynthesis: the process plants use to convert sunlight into energy, and does not require any external power source. Unlike earlier prototypes, which often relied on toxic or unstable light absorbers, the new biohybrid design avoids toxic semiconductors, lasts longer, and can run without additional chemicals that previously hindered efficiency.

In tests, the researchers used sunlight to convert carbon dioxide into formate and then used it directly in a ‘domino’ chemical reaction to produce an important type of compound used in pharmaceuticals, with high yield and purity.

Their results, reported in the journal Joule, mark the first time that organic semiconductors have been used as the light-harvesting component in this type of biohybrid device, opening the door to a new family of sustainable artificial leaves.

The chemical industry is central to the world economy, producing products from pharmaceuticals and fertilisers, to plastics, paints, electronics, cleaning products, and toiletries.

“If we’re going to build a circular, sustainable economy, the chemical industry is a big, complex problem that we must address,” said Professor Erwin Reisner from Cambridge’s Yusuf Hamied Department of Chemistry, who led the research. “We’ve got to come up with ways to de-fossilise this important sector, which produces so many important products we all need. It’s a huge opportunity if we can get it right.”

Reisner’s research group specialises in the development of artificial leaves, which turn sunlight into carbon-based fuels and chemicals without relying on fossil fuels. But many of their earlier designs depend on synthetic catalysts or inorganic semiconductors, which either degrade quickly, waste much of the solar spectrum, or contain toxic elements such as lead.

“If we can remove the toxic components and start using organic elements, we end up with a clean chemical reaction and a single end product, without any unwanted side reactions,” said co-first author Dr Celine Yeung, who completed the research as part of her PhD work in Reisner’s lab. “This device combines the best of both worlds – organic semiconductors are tuneable and non-toxic, while biocatalysts are highly selective and efficient.”

The new device integrates organic semiconductors with enzymes from sulphate-reducing bacteria, splitting water into hydrogen and oxygen or converting carbon dioxide into formate.

The researchers have also addressed a long-standing challenge: most systems require chemical additives, known as buffers, to keep the enzymes running. These can break down quickly and limit stability. By embedding a helper enzyme, carbonic anhydrase, into a porous titania structure, the researchers enabled the system to work in a simple bicarbonate solution — similar to sparkling water — without unsustainable additives.

“It’s like a big puzzle,” said co-first author Dr Yongpeng Liu, a postdoctoral researcher in Reisner’s lab. “We have all these different components that we’ve been trying to bring together for a single purpose. It took us a long time to figure out how this specific enzyme is immobilised on an electrode, but we’re now starting to see the fruits from these efforts.”

“By really studying how the enzyme works, we were able to precisely design the materials that make up the different layers of our sandwich-like device,” said Yeung. “This design made the parts work together more effectively, from the tiny nanoscale up to the full artificial leaf.”

Tests showed the artificial leaf produced high currents and achieved near-perfect efficiency in directing electrons into fuel-making reactions. The device successfully ran for over 24 hours: more than twice as long as previous designs.

The researchers are hoping to further develop their designs to extend the lifespan of the device and adapt it so it can produce different types of chemical products.

“We’ve shown it’s possible to create solar-powered devices that are not only efficient and durable but also free from toxic or unsustainable components,” said Reisner. “This could be a fundamental platform for producing green fuels and chemicals in future – it’s a real opportunity to do some exciting and important chemistry.”

The research was supported in part by the Singapore Agency for Science, Technology and Research (A*STAR), the European Research Council, the Swiss National Science Foundation, the Royal Academy of Engineering, and UK Research and Innovation (UKRI). Erwin Reisner is a Fellow of St John’s College, Cambridge. Celine Yeung is a Member of Downing College, Cambridge.


Semi-artificial organic photocathode in operation (Front view)

Credit

Celine Yeung