The shared genomic history of Middle- to Late-Holocene populations from the Southern Cone of South America Through genomic data from 52 ancient individuals in Argentina and Uruguay, Krettek et al. reconstruct demographic history in the Southern Cone over 6,000 years. They detect ancestry shifts and interco...

Separately (w/ no overlap in personnel that I can see), we have this out from *Cell*: www.cell.com/current-biol.... Some implications for #GlobalMiddleAges

BEHIND THE PAPER The questions driving this research stem from a persistent imbalance in human genomics: although populations from regions that are historically over-represented in global research have been studied extensively, many others remain strikingly under-represented. As a result, even basic questions about the origins, diversity and evolutionary history of these populations remain unanswered or are often addressed through frameworks that are biased or built from extremely limited data. This project represents nearly a decade of sustained collaboration between researchers across several Latin American countries and, crucially, continuing dialogue and partnership with Indigenous American communities. One of the most encouraging moments was realizing that such a large and diverse genomic effort could be coordinated by researchers from the countries of these communities. In this sense, the project stands as both a scientific and a social milestone, demonstrating that transformative genomic research can be led, largely funded and conducted in the regions the histories of which it seeks to understand.

On the significance of this study (from the additional "Comment" by the 1st & the Corresponding Author). It is unfortunate that this separate comment is paywalled, b/c it has this important statement about the ethics of the research. www.nature.com/articles/d41... #IndigenousHistories #aDNA 🧪

The evolutionary history and unique genetic diversity of Indigenous Americans - Nature Analysis of 128 high-coverage Indigenous American genomes shows extensive diversity shaped by several South American dispersals, ancient Australasian admixture, archaic introgression and long-term ada...

Generation & analysis of largest compendium of whole genomes from Indigenous Americans. 128 high-coverage genomes are shown to "harbour extensive and previously uncharacterized genetic diversity, reflecting at least three dispersals into South America." www.nature.com/articles/s41... #OpenAccess

A headling in the STAT newsletter for April 22, 2026, reading "Are MAHA snacks really better for you? Nutrition experts parse a grocery aisle gold rush." The article (paywalled) can be found at: https://www.statnews.com/2026/04/22/better-for-you-snacks-maha-influence-food-companies/.

The fact that @statnews.com would run an article w/ this headline (using "MAHA" as shorthand for both marketing tool & stamp-of-approval) means that we've already lost the war for science-based nutritional policy in the U.S.

Could we get the shelfmark?

I love how this shows not simply that the earth is round & that what's "up" on one side is "down" on the other, but that half the world is in sunshine the same time the other half is in night!

#MedievalSky

Today was the last day of class for my incarcerated students. Their final presentations was on the idea of Indian Ocean as method and lens. Barring the ones with military experience in the Gulf this class plunged them into different waters. bell hooks is right: the classroom is liberatory space.

The corresponding author’s middle initial is incorrect, so I wonder how many of the “authors” know about this. (And it’s fascinating that this fake publisher has ripped off the fonts of MDPI for the text and Springer Nature for the journal.)

I implore the people of the US to really understand what is happening here—and I know that most people reading this do.

But this isn’t “routine”.

Coupled with RFK Jr. saying to Congress that immigrants are to blame for U.S. infectious disease outbreaks, we are in a dangerous situation.

This is fantastic! Shawn(ta) is amazing, and their appointment foreshadows lots of exciting, important things in the world of municipal archives!

Data center moratorium a fault line in Dem primaries The push for a nationwide moratorium is gaining traction in some House primaries, putting Democrats at odds over energy and economic growth.

Data center moratorium a fault line in Dem primaries

“Don’t it always seem to go that you don’t know what you got till it’s gone…” -Joni Mitchell

#EarthDay2026

@guywebsterphotography

We’re currently recruiting for a Project Cataloguer on a 1 year fixed-term contract to catalogue parts of our archives relating to our transfer from Hamburg to London in 1933.
35 hours per week
£30,842 per annum
Apply by 12 May 2026
Apply now ➡️ warburg.sas.ac.uk/news-events/...
#jobopportunity #UoL

Global jet fuel supplies are collapsing. Lufthansa has already cut 20,000 flights.

This action should be raising alarm bells across the country.

It’s not an annoyance.

It’s a willful and malicious action to deprive the people of the United States of critical health information in order to prop up a government disinformation campaign against vaccines.

George Washington’s Woke Vaccines What the Founders would have thought about Pete Hegseth lifting the requirement that service members get the flu vaccine.

Hegseth's repeal of universal flu vaccines is nonsense on so many levels, but his claim vaccine mandates were an "era of betrayal" irked me as a historian. Here's my response, in @thebulwark.com this morning;

www.thebulwark.com/p/george-was...

Lived in NC most of my life and I can almost guarantee I’m the first in my generation to see these word put together.

#MedievalSky

Atención, jóvenes investigadores!📜
CALL FOR PAPERS💥
Este año repetimos con el "II Seminario de Introducción a la Investigación Medieval" #SIIM ‼️
¿Estás interesado en estudiar la Edad Media? ¿Quieres dar a conocer tus investigaciones?
⚡Envía tu propuesta antes del 31 de mayo⚡

Monterey Park, California has banned any data centers within its city limits Monterey Park's city council has moved to ban construction of any data centers within its borders.

“The California city's leaders placed a permanent ban on these buildings, labelling them a public nuisance. A proposed plan to construct a 250,000 square foot data center was stopped after residents and advocates pushed back against the project.”

Flu spreads efficiently especially in close quarters like military troop lodging facilities. If you are in the military you are required to get several vaccines because of how devastating outbreaks can be to troops and also because they are more likely be targeted by agents of biological warfare.

Birthright citizenship with Anna O. Law The history of, and modern threats to, this core American freedom

"The US system needs to be overhauled very fundamentally . . . whether we do that in my lifetime i don't know"

@unlawfulentries.bsky.social

www.politicalphilosophypodcast.com/birthright-c...

omg, this! I struggle with getting students to explore anti-abortion thought seriously, anti-suffrage thought seriously, anti-vax thought seriously. My famous refrain in all of my classes is, "We have to take our historical actors seriously!"

A Year After U.S.A.I.D.’s Death, Fired Workers Find Few Jobs and Much Loss

This is so sad. “Nights are the hardest.

“I can’t sleep because of our own situation,” Ms. Uccello, 49, said over coffee on a recent afternoon. “I can’t sleep because of what I know what’s happening around the world. I can’t sleep because my former colleagues and friends are also suffering.”

In 1777, George Washington mandated that all members of the Continental Army be inoculated for smallpox.

In 2026, Pete Hegseth—citing the Biden administration's COVID vaccine mandate—ended the requirement that service members receive a flu vaccine.

Inside the DOGE Takeover of the Federal Government In early 2025, Americans first learned about the takeover of the federal government by the so-called Department of Government Efficiency (DOGE). DOGE had been operating under a veil of secrecy, with l...

Really proud of us at @wired.com for this. The work we did on DOGE is some of the work I am personally proudest of, and it's amazing to see that work and impact recognized.

www.hillmanfoundation.org/hillman-priz...

Increasing demand for water strains Upper Snake River system • Utah News Dispatch Using Snake River water to solve the crisis facing the Colorado River Basin would be a stretch, Wyoming Senior Assistant AG Chris Brown said.

Tapping Snake River water to solve the crisis facing the Colorado River Basin would be a stretch, Wyoming Senior Assistant Attorney General Chris Brown told water aficionados.

Read more from @idahocapitalsun.com

🧪

TIL: There's a whole network of databases named after the 12thC abbess and intellectual, Heloise! The network is devoted to gathering historical data on Europe's universities. If that isn't a legacy, I don't know what is! heloise.hypotheses.org

#MedievalSky

This is what science can do 👏

Three European countries have reached ≥90% HPV vaccine uptake in girls—a major step toward preventing cervical cancer and other HPV-related cancers.

When science, policy, and trust align → real impact.

Physical Description Axis: 6 Diameter (in mm): 18 Weight (in g): 2.73 Series: RIC.7 Typological Description Object Type: Coin Date Range: 332–333 Denomination: AE2 Denomination: AE3 Material: Bronze Authority Authority: Constantine I Dynasty: Constantinian Dynasty State: Roman Empire Geographic Place of Production: Trier Reverse Symbol: -/-//TR•P References Reference: RIC VII Treveri 542 Administrative History Identifier: 1954.203.89 Department: Roman Collection: American Numismatic Society Provenance Acquisition: Lot 1954.203 (purchases: Ives, Mrs. Herbert Eugene), October 1 1954 Subjects Category: Roman--Imperial--Laterempire Rights CopyrightHolder: American Numismatic Society License: Public Domain Mark (images) Rights: No Copyright - United States Map In

A happy 2779th birthday to the city of Rome. You really don’t look a day over 2000. 🐺 numismatics.org/collection/1...