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RB Kollannur

@arby-k.bsky.social
99 followers 137 following 2.5K posts

Career - Finance, Data. Interests - History, Genealogy, Astronomy. Rotarian, JCI Senator. Unseen in Plain Sight.

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RB Kollannur @arby-k.bsky.social · 7h
Over the course of a century, a nineteenth-century artist’s paintings traveled from Port-au-Prince to New Orleans to Washington to New Haven. His name stayed in the archives, waiting to be found. The Artist (Formerly) Known as Louis Rigaud www.laphamsquarterly.org/roundtable/a...
laphamsquarterly.org
The Artist (Formerly) Known as Louis Rigaud | Marlene L. Daut
Over the course of a century, a nineteenth-century artist’s paintings traveled from Port-au-Prince to New Orleans to Washington to New Haven. His name stayed in the archives, waiting to be found.
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RB Kollannur @arby-k.bsky.social · 11h
At Drimolen, Paranthropus robustus outnumbered Homo erectus by more than 10 to one around 2 million years ago. 2-million-year-old fossil confirms Homo erectus lived in South Africa earlier than thought archaeologymag.com/2026/09/homo...
archaeologymag.com
2-million-year-old fossil confirms Homo erectus lived in South Africa earlier than thought | Archaeology News Online Magazine
A new adult fossil from South Africa confirms Homo erectus lived there about 2 million years ago, alongside changing Paranthropus robustus.
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RB Kollannur @arby-k.bsky.social · 11h
A group of recovered vessels display characteristics similar to pottery crafted in the ancient Levant region. 4,700-Year-Old Shipwreck Found Off Türkiye’s Coast May Be the World’s Oldest www.anatolianarchaeology.net/4700-year-ol...
anatolianarchaeology.net
4,700-Year-Old Shipwreck Found Off Türkiye's Coast May Be the World's Oldest | Anatolian Archaeology
Archaeologists uncover ancient ceramic vessels from a 4,700-year-old shipwreck near Kekova, Türkiye, potentially the world's oldest...
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RB Kollannur @arby-k.bsky.social · 21h
Sardinian groups first maintained links with the eastern Mediterranean, then developed stronger contacts with Iberia and Atlantic Europe after about 1200 BCE. Bronze Age Sardinia supplied copper to Scandinavia, Britain and the Mediterranean archaeologymag.com/2026/09/bron...
archaeologymag.com
Bronze Age Sardinia supplied copper to Scandinavia, Britain and the Mediterranean | Archaeology News Online Magazine
Bronze Age Sardinia supplied copper across Europe and the Mediterranean, revealing far-reaching trade networks from Scandinavia to the Levant.
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RB Kollannur @arby-k.bsky.social · 14/10/2026
The researchers describe Apollonia’s growth as a series of changes rather than one major project. People first used the natural coast, then added structures as their needs grew. How Greek settlers turned Libya’s natural coast into a major port for ancient Cyrene archaeologymag.com/2026/09/gree...
archaeologymag.com
How Greek settlers turned Libya’s natural coast into a major port for ancient Cyrene | Archaeology News Online Magazine
New research shows how Greek settlers reshaped Libya’s coast to build Apollonia, the maritime port of ancient Cyrene.
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RB Kollannur @arby-k.bsky.social · 14/10/2026
The Great Flood and Black Sea from Christoph Baumer's History of the Caucasus. (I won't be surprised if Black Sea did play a role in it though and if the Semitic languages had a Caucasian origin, because of Mount Ararat)
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RB Kollannur @arby-k.bsky.social · 14/10/2026
Los Angeles’s Mayan Revival architects, like Frank Lloyd Wright and Robert Stacy-Judd, drew from the headwaters of imperial discovery. The Rain God in Monrovia, and in Mérida themetropole.blog/2026/09/15/t...
themetropole.blog
The Rain God in Monrovia, and in Mérida
This is the second entry in our 10th Annual Graduate Student Blogging Contest, “Revolution.” By Vanessa Christman I must have driven my husband insane when we first tuned into Apple TV’s The Studio…
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RB Kollannur @arby-k.bsky.social · 14/10/2026
A notoriously stubborn agricultural waste product, rice husk is being repurposed as a sturdy and resilient construction material. The US homes built from rice www.bbc.com/future/artic...
bbc.com
The US produces millions of tonnes of rice waste each year. Now people are building homes with it
A notoriously stubborn agricultural waste product, rice husk is being repurposed as a sturdy and resilient construction material.
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RB Kollannur @arby-k.bsky.social · 14/10/2026
Fifteen cuneiform tablets from the Iraq Museum record farming, irrigation, land, grain, and labor during the Ur III period. 15 ancient tablets reveal forgotten places, royal estates and thousands of hectares of farmland in Mesopotamia archaeologymag.com/2026/10/ur-i...
archaeologymag.com
15 ancient tablets reveal forgotten places, royal estates and thousands of hectares of farmland in Mesopotamia | Archaeology News Online Magazine
Fifteen Ur III cuneiform tablets record farming, irrigation, land surveys, grain payments and labor in ancient Mesopotamia.
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RB Kollannur @arby-k.bsky.social · 14/10/2026
Speaking to the BBC, Bitouzet observed that Flamel was “A man who was rich, who was not aristocratic, but who had a high social standing – people found that strange”. Who Was the Real Nicolas Flamel? New Medieval Exhibition Opens in Paris www.medievalists.net/2026/10/nico...
medievalists.net
Who Was the Real Nicolas Flamel? New Medieval Exhibition Opens in Paris - Medievalists.net
A new exhibition in Paris reveals the real Nicolas Flamel, uncovering his medieval wealth and how he became a legendary alchemist.
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RB Kollannur @arby-k.bsky.social · 13/10/2026
King Mátyás moved his court to Vienna. But he died in 1490, without legitimate heir. Władysław of Poland was elected as the new king and in 1526, Ottomans defeated Hungary at Mohács, dividing the kingdom. Hungary was later reunited in 1699 under the Habsburgs. 10/10
Hungarian conquest of Vienna, taken from https://en.wikipedia.org/wiki/Siege_of_Vienna_(1485)#/media/File:Philostratus_k%C3%B3dex_Corvin_J%C3%A1nos.jpg
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RB Kollannur @arby-k.bsky.social · 13/10/2026
In 1479, the Black Army defeated the Ottomans at Breadfield in Transylvania. This set the Ottoman war effort back. King Mátyás was also at war with the emperor, capturing parts Lower Austria and Styria in 1478. In 1485, he captured Vienna and in 1487, Wiener Neustadt. 9/10
Hungarian victory at Breadfield, taken from https://en.wikipedia.org/wiki/Battle_of_Breadfield#/media/File:Keny%C3%A9rmez%C5%91i_csata.jpg
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RB Kollannur @arby-k.bsky.social · 13/10/2026
He reorganized the army under Jan Haugwitz and turned it into a powerful standing army, campaigning against the Ottomans, the Emperor and in Bohemia. He also supported neighbouring Wallachia and Moldavia in their defence against the Ottomans. 8/10
The Black Army strikes, taken from https://en.wikipedia.org/wiki/Matthias_Corvinus#/media/File:The_wars_of_Matthias_Corvinus_of_Hungary_(1458-1490).png
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RB Kollannur @arby-k.bsky.social · 13/10/2026
King Mátyás raised taxes to finance his defence but was met with opposition. Nevertheless, he won them over in the end. In 1468, he invaded Bohemia, but the Bohemian king held on to the throne with Polish help. But King Mátyás kept parts of Bohemia like Moravia and Silesia. 7/10
Meeting of the kings, taken from https://en.wikipedia.org/wiki/Matthias_Corvinus#/media/File:Ji%C5%99%C3%AD_of_Pod%C4%9Bbrady_and_Matthias_Corvinus_by_Mikol%C3%A1%C5%A1_Ale%C5%A1.jpg
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RB Kollannur @arby-k.bsky.social · 13/10/2026
In 1459, Újlaki Miklós and László Garai rebelled againt the king, supported by Emperor Friedrich. But by 1463, Mátyás had made peace with the emperor. By 1459, the Ottomans had conquered Serbia as well, though Belgrade held out. Bosnia was conquered in 1463. 6/10
Serbia in 1422, taken from https://en.wikipedia.org/wiki/Serbian_Despotate#/media/File:Serbian_Despotate_(1422)-en.svg
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RB Kollannur @arby-k.bsky.social · 13/10/2026
The young king had his work cut out. Displeased nobles backed Friedrich or Kazimierz, the King of Poland. But that was not the only trouble. In 1453, Constantinople had fallen to Sultan Mehmed. The Ottomans were fast advancing into Hungary. 5/10
Mehmet II, Ottoman Sultan, taken from https://en.wikipedia.org/wiki/Mehmed_II#/media/File:Bellini,_Gentile_-_Sultan_Mehmet_II.jpg
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RB Kollannur @arby-k.bsky.social · 13/10/2026
The Diet met at Pest in 1458 to elect a new king and perhaps concerned about favouring one king over another, chose a local - Mátyás Hunyadi. Mihály Szilágyi, his maternal uncle who had convened the Diet, was appointed Regent 4/10
King Mátyás in Buda, taken from https://en.wikipedia.org/wiki/Matthias_Corvinus#/media/File:King-Matej-arrival-in-Buda-color.jpg
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RB Kollannur @arby-k.bsky.social · 13/10/2026
King Ladislaus died the same year aged 17, bringing to end the senior Habsburg line. Holy Roman Emperor Friedrich von Habsburg from the junior Habsburg line, pushed his claims, but the deceased king's nearest relative was his sister, Elisabeth, Queen of Poland. 3/10
Emperor Friedrich III, taken from https://en.wikipedia.org/wiki/Frederick_III,_Holy_Roman_Emperor#/media/File:Hans_Burgkmair_d._%C3%84._005.jpg
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RB Kollannur @arby-k.bsky.social · 13/10/2026
In 1456, János Hunyadi came to the rescue of Belgrade under siege by Ottoman forces. But he died later of plague. Rivalry between his elder son, László, with Count of Cilli, cascaded into the arrests of both László and Mátyás by the king. László was executed in 1457. 2/10
1456 Siege of Belgrade, taken from https://en.wikipedia.org/wiki/Siege_of_Belgrade_(1456)#/media/File:Battle_of_Nandorfehervar.jpg
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RB Kollannur @arby-k.bsky.social · 13/10/2026
Mátyás Hunyadi was born in 1443 to János Hunyadi and Erszebet Szilágyi de Horogszeg. In 1441, János Hunyadi became the Voivode of Transylvania in Hungary, alongside Újlaki Miklós, playing an active role in its defence against Ottomans. He was the Regent for King Ladislaus from 1446. 1/10
Mátyás Hunyadi, King of Hungary and Croatia, taken from https://en.wikipedia.org/wiki/Matthias_Corvinus#/media/File:Andrea_Mantegna_-_King_Matthias_Corvinus_of_Hungary.jpg
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RB Kollannur @arby-k.bsky.social · 13/10/2026
An Emperor thrown out of his capital. The last gasp of a nation for self-rule, before foreign rule for centuries. Story in the evening ... bsky.app/profile/arby...
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RB Kollannur @arby-k.bsky.social · 12/10/2026
In The Dream of Macsen Wledig, medieval storytellers used the emperor’s name in Welsh in recounting his rise to power. Roman fort found in Wales could prove myth of emperor’s camp is real www.theguardian.com/uk-news/2026...
theguardian.com
Roman fort found in Wales could prove myth of emperor’s camp is real
Exclusive: Finds suggest account in medieval folklore of a camp near Frenni Fawr hill was rooted in reality
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RB Kollannur @arby-k.bsky.social · 12/10/2026
Rēkohu – the Chatham Islands in English, Wharekauri in te reo Māori – is a small corner of Aotearoa New Zealand, 800 kilometres east of the South Island. Distant voices: how the revival of ta rē Moriori lets us hear the true history of Rēkohu theconversation.com/distant-voic...
theconversation.com
Distant voices: how the revival of ta rē Moriori lets us hear the true history of Rēkohu
The second Moriori language week – ta wik’ a ta rē Moriori – celebrates the voices of a people whose rich culture and history were once nearly extinguished.
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RB Kollannur @arby-k.bsky.social · 11/10/2026
My newsletter is up with a dash of books, history and science. This week, I have a look at A Matter of Honor by Jeffrey Archer. One of his early books, it was set in the peak of the Cold War as a thriller with geopolitical ramifications. disjointedlaptop.substack.com/p/a-view-fro...
disjointedlaptop.substack.com
A View From My Disjointed Laptop - Issue #176
Books, History, Science and more
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RB Kollannur @arby-k.bsky.social · 10/10/2026
The coin was struck between about 1024 and 1028, near the end of the Viking Age. Rare coin of Norway’s King Olaf Haraldsson found in the country’s largest Viking hoard archaeologymag.com/2026/10/rare...
archaeologymag.com
Rare coin of Norway’s King Olaf Haraldsson found in the country’s largest Viking hoard | Archaeology News Online Magazine
A rare 1,000-year-old coin of King Olaf Haraldsson has emerged from Norway’s largest Viking Age hoard, with fewer than 20 examples known.
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RB Kollannur @arby-k.bsky.social · 10/10/2026
The researchers identified genetic signatures in the bacterial DNA of both populations, and used mutation rates to estimate when bacterial species diverged from a common ancestor millennia ago. Gut Microbiome Analysis Links Populations in Africa and South America archaeology.org/news/2026/10...
archaeology.org
News - Gut Microbiome Analysis Links Populations in Africa and South America - Archaeology Magazine
SANTA BARBARA, CALIFORNIA—According to a statement released by the University of California, Santa Barbara (UCSB), […]
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RB Kollannur @arby-k.bsky.social · 10/10/2026
One of the more intriguing objects is a silver medallion decorated with two birds. Researchers have suggested that the image could represent Huginn and Muninn, the two ravens associated with the Norse god Odin. Rare Medieval Silver Hoard Discovered in Russia www.medievalists.net/2026/10/rare...
medievalists.net
Rare Medieval Silver Hoard Discovered in Russia - Medievalists.net
Archaeologists in Russia have uncovered a remarkable medieval silver hoard containing rare Swedish coins, jewellery and possible Norse imagery.
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RB Kollannur @arby-k.bsky.social · 10/10/2026
For more than 1,300 years, China chose its top officials by written exam. Its top officials were chosen meritocratic ally — or were they? Merit, Masters and China's Imperial Exam cepr.org/multimedia/m...
cepr.org
Merit, Masters and China's Imperial Exam
For more than 1,300 years, China chose its top officials by written exam. Its top officials were chosen meritocratic ally — or were they? When the results came out, each successful candidate went to p...
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RB Kollannur @arby-k.bsky.social · 10/10/2026
But were these men historical figures, or characters created to account for developments whose origins had been forgotten? Ancient Rome's founding fathers: the extraordinary stories of the city's first kings www.historyextra.com/period/roman...
historyextra.com
Ancient Rome's founding fathers: the extraordinary stories of the city's first kings
Rome attributed its founding, religious institutions and early political organisation to seven kings. These mythical monarchs may preserve something important about the city’s beginnings
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RB Kollannur @arby-k.bsky.social · 10/10/2026
Just Inches Below the Forest Floor, Archaeologists in Germany Unearthed a Roman Temple Likely Dedicated to Mars, the God of War www.smithsonianmag.com/smart-news/j...
smithsonianmag.com
Just Inches Below the Forest Floor, Archaeologists in Germany Unearthed a Roman Temple Likely Dedicated to Mars, the God of War
Researchers found the structure's remains, as well as fragments of statues, while excavating near the Kapersburg fort, an ancient Roman military fortification on the outskirts of modern-day Frankfurt
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RB Kollannur @arby-k.bsky.social · 10/10/2026
Khmer Empire Developed Massive State Healthcare System, Study Finds www.medievalists.net/2026/10/khme...
medievalists.net
Khmer Empire Developed Massive State Healthcare System, Study Finds - Medievalists.net
A new study examines how the Khmer Empire under Jayavarman VII created a remarkable network of 102 hospitals offering free healthcare across its territories.
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RB Kollannur @arby-k.bsky.social · 10/10/2026
By the early 16th century, Jews in France and in German lands had already been living in designated neighbourhoods, physically distinct from the surrounding areas, for close on 300 years. The ghetto on the lagoon aeon.co/essays/the-m...
aeon.co
The making of the Ghetto on a Venetian island in 1516 | Aeon Essays
Sixteenth-century Venice wanted to expel its Jews but couldn’t do without them. Its compromise was the world’s first ghetto
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RB Kollannur @arby-k.bsky.social · 10/10/2026
The choice of materials suggests Neanderthals knew their wood. Neanderthal wooden tools from Spain found preserved in stone arstechnica.com/science/2026...
arstechnica.com
Neanderthal wooden tools from Spain found preserved in stone
Dissolved rock precipitated around the tools, which then decayed.
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RB Kollannur @arby-k.bsky.social · 10/10/2026
Britain and Germany: Europe’s original special relationship engelsbergideas.com/reviews/brit...
engelsbergideas.com
Britain and Germany: Europe's original special relationship
Jan Rüger’s erudite study makes a compelling case for seeing the bond between Britain and Germany as a driving force in European history.
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RB Kollannur @arby-k.bsky.social · 09/10/2026
The site appears to have been continuously inhabited between approximately 1200 and 450 BC, spanning the Late Bronze Age and Early Iron Age. Archaeologists uncover extensive Bronze Age settlement on Hungary’s Somló Hill www.heritagedaily.com/2026/10/arch...
heritagedaily.com
Archaeologists uncover extensive Bronze Age settlement on Hungary’s Somló Hill
Archaeologists from the Hungarian National Museum have uncovered evidence of an extensive Bronze Age settlement on Somló Hill, revealing a sophisticated community that flourished more than 3,000 years...
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RB Kollannur @arby-k.bsky.social · 09/10/2026
The game rapidly made its way through the Eastern bloc before reaching Hungary, where British software entrepreneur Robert Stein recognized its commercial potential. The Bizarre, Murky History of Soviet-Born Tetris thereader.mitpress.mit.edu/the-bizarre-...
thereader.mitpress.mit.edu
The Bizarre, Murky History of Soviet-Born Tetris
Behind the beloved game lies a struggle over mathematical ideas, erased collaborators, offshore millions, and copyright power.
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RB Kollannur @arby-k.bsky.social · 09/10/2026
#95 – Pope Leo X (1513-1521) bsky.app/profile/arby...
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RB Kollannur @arby-k.bsky.social · 09/10/2026
Newly analyzed genomes provide additional evidence linking outbreaks to the Thirty Years' War (1618-1648) and the Great Northern War (c. 1700-1721). Ancient DNA reveals how plague kept returning for 400 years after the Black Death www.sciencedaily.com/releases/202...
sciencedaily.com
Ancient DNA reveals how plague kept returning for 400 years after the Black Death
Ancient DNA reveals that plague repeatedly returned to Europe for more than 400 years after the Black Death, evolving into new lineages and spreading through trade, migration, and war. Researchers als...
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RB Kollannur @arby-k.bsky.social · 09/10/2026
The Pope excommunicated Luther in 1521 and at the subsequent Diet of Worms, Luther refused to bow down. While the Pope died the same year, Prussia, Hesse, Saxony, Sweden and Denmark would break away from the self-indulgent Rome by 1540, siding with Luther instead. 10/10
Luther at Worms, taken from https://en.wikipedia.org/wiki/Martin_Luther#/media/File:Luther_at_the_Diet_of_Worms.jpg
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RB Kollannur @arby-k.bsky.social · 09/10/2026
The Ninety-Five Theses of Martin Luther immediately went viral, perhaps with a bit of Streisand effect, as it was partly due to a pamphlet war with Johann Tetzel. The Pope defended his right to sell indulgences in 1518 and attempted unsuccessfully to suppress Luther. 9/10
Martin Luther, taken from https://en.wikipedia.org/wiki/Martin_Luther#/media/File:Lucas_Cranach_d.%C3%84._-_Martin_Luther,_1528_(Veste_Coburg).jpg
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RB Kollannur @arby-k.bsky.social · 09/10/2026
In 1517, the Pope had a Cardinal, who was rumoured to be his lover, killed calling it an assassination conspiracy. With the worsening financial crisis, he appointed 31 Cardinals the same year. Later that year, a German priest called out the practice of selling indulgences. 8/10
Posting a theses, taken from https://en.wikipedia.org/wiki/Ninety-five_Theses#/media/File:Der_Anschlag_von_Luthers_95_Thesen.jpg
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RB Kollannur @arby-k.bsky.social · 09/10/2026
In 1516, the Pope's brother, Giuliano died. This led the Pope to shift his focus on his nephew, Lorenzo, whom he made Duke of Urbino after a costly war. But Lorenzo died in 1519 and Urbino went back to its former rulers. Medici still retained Florence, though. 7/10
Lorenzo de' Medici, Duke of Urbino, taken from https://en.wikipedia.org/wiki/Lorenzo_de%27_Medici,_Duke_of_Urbino#/media/File:Portrait_of_Lorenzo_di_Medici.jpg
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RB Kollannur @arby-k.bsky.social · 09/10/2026
Self-indulgent, he also put the Church badly in debt and sold more indulgences (essentially "Get out of hell for a donation" cards) to balance the books. When France marched into Milan, he resisted them, only to switch sides after French victory at Marignano. 6/10
Battle of Marignano, taken from https://en.wikipedia.org/wiki/Battle_of_Marignano#/media/File:Marignano.jpg
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RB Kollannur @arby-k.bsky.social · 09/10/2026
In 1513, Pope Julius II died and Giovanni was elected as the new Pope. Taking the name Leo, he was ordained as a priest on 15th March and was consecrated as Pope two days later. As a Pope, he spent lavishly on art with artists like Raphael at work. 5/10
Raphael's work, taken from https://en.wikipedia.org/wiki/The_Oath_of_Leo_III#/media/File:Raphael_-_Oath_of_Leo_III.jpg
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RB Kollannur @arby-k.bsky.social · 09/10/2026
Pope Julius II went to war against Venice, who had been eating up the Papal states. By 1508, he had gained Romagna and Bologna, and Giovanni was appointed as papal legate there in 1511. In 1512, Giovanni gained control of Florence as well, where he put his brother, Giuliano, in charge. 4/10
Pope Julius II, taken from https://en.wikipedia.org/wiki/Pope_Julius_II#/media/File:Pope_Julius_II.jpg
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RB Kollannur @arby-k.bsky.social · 09/10/2026
Giovanni fled for northern Europe but returned to Rome in 1500. In 1503, Piero de' Medici died, making Giovanni the head of the family. He also took part in two papal elections that year, electing Pope Pius III and later, Pope Julius II. 3/10
Piero de' Medici, taken from https://en.wikipedia.org/wiki/Piero_the_Unfortunate#/media/File:Piero_di_Lorenzo_de_Medici_-_Domenico_Ghirlandaio.png
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RB Kollannur @arby-k.bsky.social · 09/10/2026
Because of his age, his official appointment would take until 1492. But his move to Rome had to be curtailed after his father's death the same year. Giovanni's elder brother, Piero, succeeded, but in 1494 the Florentines rebelled and expelled the Medici. 2/10
Lorenzo de' Medici, taken from https://en.wikipedia.org/wiki/Lorenzo_de%27_Medici#/media/File:Lorenzo_de_Medici.jpg
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RB Kollannur @arby-k.bsky.social · 09/10/2026
Giovanni de' Medici was born in 1475 to Lorenzo de' Medici and Clarice Orsini. Lorenzo was the de facto ruler of the Republic of Florence and ran the Medici Bank. As a younger son, Giovanni was destined for church, with Pope Innocent VIII naming him a Cardinal in 1489. 1/10
Pope Leo X, taken from https://en.wikipedia.org/wiki/Pope_Leo_X#/media/File:Raffaello,_ritratto_di_papa_leone_X_tra_i_cardinali_luigi_de'_rossi_e_giulio_de'_medici,_1518,_03.jpg
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RB Kollannur @arby-k.bsky.social · 09/10/2026
An exalted institution, a link to a glorious past, A princely ruler at the helm and, A steep fall from the precipice. Story in the evening ... bsky.app/profile/arby...
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RB Kollannur @arby-k.bsky.social · 08/10/2026
As ice crystals grow, small pockets of liquid brine may remain trapped between them. Salts and organic compounds can become highly concentrated inside those pockets. The ice blasting from Saturn's moon Enceladus is stranger than scientists realized www.sciencedaily.com/releases/202...
sciencedaily.com
The ice blasting from Saturn's moon Enceladus is stranger than scientists realized
Enceladus may naturally separate and concentrate chemicals from its hidden ocean as droplets slowly freeze and shatter on their way into space. The process could explain Cassini’s puzzling ice-grain c...
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