Cards starting with C
9,109 cards. Page 128 of 152.
Cologne owes its Roman name to Nero's formidable mother, AgrippinaAgrippina the Younger was the sister of one emperor, the wife of another and the mother of a third. She survived exile, plotted, and steered her son Nero toward the throne. She wa…
Colombia packs the densest biodiversity per square mileColombia straddles South America with Caribbean and Pacific coasts, Amazon forest, Andes highlands, grasslands, and deserts—one of seventeen megadiverse nations and first worldwid…
Colombia's mysterious necropolis holds the world's largest collection of ancient megalithic religious sculpturesHidden in the eastern foothills of the Colombian Massif lies a vast, enigmatic necropolis. Spanning over 300 square kilometers, this site contains hundreds of towering, brightly p…
Colombia’s capital sits 2,640 meters above the seaBogotá, Colombia’s capital and largest city, averages about 2,640 meters on the Bogotá savanna of the eastern Andes. Gonzalo Jiménez de Quesada founded it as New Kingdom of Granad…
Colombo kept the money after Sri Lanka moved its capitalColombo is Sri Lanka's largest city and financial centre, and still its executive and judicial capital, with some 5.6 million people in the metro area. The British made it the isl…
Colonel Sanders started franchising fried chicken in his sixties, living on Social SecurityHarland Sanders was 65 when a new interstate highway drained the traffic from his Kentucky roadside restaurant. Left with savings and a monthly Social Security cheque of $105, he …
Colonial authorities pressured archaeologists to deny Africans built Great Zimbabwe.Great Zimbabwe's mortarless stone walls, up to 11 metres high, make it the largest stone structure in precolonial southern Africa. It was built between the 11th and 15th centuries…
Colonial Brazil was a commercial venture that evolved into a massive, slave-dependent export empire.Unlike the Spanish conquest of Mexico and Peru, Portugal initially viewed Brazil as a mere trading post. Lacking established civilizations to conquer, the Portuguese turned to pri…
Colonial rail town that became Northern Nigeria's capitalKaduna, capital of Kaduna State on the Kaduna River, was founded by British colonists in 1900 when Frederick Lugard picked a Lagos-Kano railway site. It served as capital of Niger…
Colonial Virginia's ministers complained churchgoers dozed, whispered and ogled fashionable womenEarly Anglican clergy in Virginia were not impressed by their flocks. Parishioners slept, gossiped, wandered in and out, and stared out the windows. With too few ministers to go r…
Colonial wars were not just battles; they were absolute, political, and often brutal affairs.Colonial war was a unique form of conflict defined by the drive for total, permanent control over foreign territories. Unlike traditional wars between neighboring states, these ca…
Colonialism is a global practice of domination that reshaped the world for centuries.Colonialism is more than just historical conquest; it is a systematic relationship where a foreign power maintains political, economic, and cultural control over a distant territo…
Colonialism is not a modern invention but a brutal practice spanning thousands of yearsWhile often associated with the Age of Discovery, colonialism is an ancient strategy. From Phoenician city-states to the British Empire, powerful nations have long exploited forei…
Colonization means sending people to live in and govern elsewhereColonization is the act of sending people to inhabit and rule another country; settlement is sometimes used as a synonym. Settler colonialism lets newcomers dominate while the met…
Color field painting stripped away artistic ego to let pure color speak for itself.Emerging in the 1940s, color field painting rejected the frantic brushwork of action painters in favor of vast, unbroken surfaces. By treating color as the subject rather than a t…
Color is not merely decoration; it is a fundamental tool for visual communication.This video explores how color theory influences design, storytelling, and emotional impact. By mastering principles like primary colors and professional harmony schemes, you can c…
Colorado is the only U.S. state that sits entirely above 1,000 meters in elevation.While many associate the Centennial State with its iconic mountain peaks, half of its land is actually rolling plains. This diverse geography, defined by straight lines on a map r…
Colorado's 2024 Congressional elections ended a six-year Democratic majority in the state delegationThe 2024 elections fundamentally reshaped Colorado's representation in the U.S. House. By splitting the eight congressional seats evenly between the Democratic and Republican part…
Colorado's 2026 House Elections: Incumbents, Ethics Complaints, and Shifting Party LoyaltiesOn November 3, 2026, Colorado voters will decide the fate of eight U.S. House seats. From high-stakes primary drama in the 3rd district to ethics allegations against incumbent Lau…
Colorado's 2026 Senate race tests the state's evolution from swing state to Democratic stronghold.Once a quintessential battleground, Colorado has undergone a profound political transformation over the last ten years. As incumbent Democrat John Hickenlooper seeks his final ter…
Colorado's 272 municipalities cover less than 2% of the state's landWhile Colorado is vast, its organized human settlements are surprisingly compact. Only a tiny fraction of the state's total land area is officially incorporated, leaving the vast …
Colorado's iconic state flag was born from a misunderstanding about a forgotten predecessorWhen a local women's organization set out to design a state flag in 1910, they were unaware that Colorado already had an official banner. Their resulting design, featuring a bold …
Colorado's landscape is a living archive of Native American, Spanish, and frontier American history.The Centennial State is defined by more than just its iconic Rocky Mountains. From ancient cliff dwellings to the remnants of mid-19th-century gold rush boomtowns, Colorado's geog…
Colorado's wealthiest congressional district is a study in rural plains and suburban sprawlSpanning the vast, rural Eastern Plains and affluent Denver suburbs, Colorado's 4th Congressional District is the state's most Republican-leaning seat. Once a competitive battlegr…
Colour does not actually exist as a physical property of objectsWe often think of objects as possessing inherent colour, but colour is actually a complex interaction. It requires light, a functioning eye, and a brain to interpret electromagnet…
Colour-blind octopuses and squid are masters of colour camouflageOctopuses, squid and cuttlefish have just one type of light receptor in their eyes, so most of them are thought to be colour blind. Yet they can repaint their skin in milliseconds…
Coloured pencils, lettered slips and raised hands: how people actually cast votesVoters in 19th-century western Canada received a blank sheet and a set of coloured pencils, marking it in the colour belonging to their chosen candidate. That Oliver ballot is one…
Coltrane turned the saxophone into a spiritual research toolJohn Coltrane (1926–1967) ranks among jazz’s most influential saxophonists and composers. North Carolina–raised, Philadelphia-trained, Navy-seasoned, he moved from sideman brillia…
Columbia began as King's College, then renamed itself to cheer the new republicFounded in 1754 by royal charter of George II, King's College shut for eight years during the Revolution while soldiers used its only building as a barracks and hospital. When it …
Columbia Pictures began as a Poverty Row outfit mocked as Corned Beef and CabbageHollywood insiders once joked that CBC, the initials of a tiny studio on low-rent Gower Street, stood for Corned Beef and Cabbage. That outfit became Columbia Pictures, home of Fr…
Columbia's longest-serving president won a Nobel and blocked Hemingway's PulitzerNicholas Murray Butler ran Columbia University for 43 years, the longest tenure in its history, shared the 1931 Nobel Peace Prize and even stood in as a vice-presidential candidat…
Columbus didn't discover the Earth was round; he just sailed it.We are often told that Christopher Columbus had to overcome the 'myth' of a flat Earth to cross the ocean. In reality, the spherical nature of our world was common knowledge long …
Columbus named Dominica for Sunday—Kalinago still say WaitukubuliDominica, a Windward Commonwealth isle with capital Roseau, is the youngest Lesser Antilles volcanic island, still geothermal enough to host Boiling Lake, the world’s second-large…
Columbus renamed Karukera after a Spanish Guadalupe shrineGuadeloupe is a French overseas department in the Caribbean: six inhabited islands including butterfly-shaped Basse-Terre and Grande-Terre, plus Marie-Galante, La Désirade, and th…
Columbus's scouts found Cubans smoking rolled leaves, and Europe soon followedWhen Christopher Columbus sent scouts inland in Cuba in 1492, they met Taino people inhaling smoke from dried herbs wrapped in a leaf. Within four decades tobacco was on sale in L…
Columbus’s first New World beach became a pirate-tamed realmThe Bahamas, a Lucayan Archipelago commonwealth, counts some 700 islands and more than 2,500 cays north of Cuba and Hispaniola. Lucayan Taíno lived here for centuries before Colum…
Coma Berenices is the only modern constellation named after a real historical person.While most constellations trace back to mythological beasts or ancient gods, this northern star cluster commemorates a queen's sacrifice. Named for Berenice II of Egypt, the const…
Comb jellies may be the oldest surviving branch of the animal family treeComb jellies row through the sea on beating bands of tiny hairs, and at up to 1.5 metres long they are the biggest animals to swim that way. Some biologists argue that their linea…
Combination antibody treatment reduces viral load in mild to moderate COVID-19A randomized trial of 613 adults with mild to moderate COVID-19 found that a combination of two neutralizing antibodies, bamlanivimab and etesevimab, significantly reduced the amo…
Combination therapies show improved progression-free survival in advanced renal cell carcinomaA phase 3 trial of 1,069 patients with advanced renal cell carcinoma found that combining lenvatinib with either pembrolizumab or everolimus extended the time before the disease p…
Combination therapy improves survival outcomes in advanced renal-cell carcinomaIn a phase 3 randomized trial of 651 adults, researchers found that combining nivolumab and cabozantinib significantly extended progression-free survival compared to sunitinib for…
Combinatorics is the ancient art of counting arrangements, from magic squares to binomial coefficients.Long before modern computing, ancient civilizations were obsessed with counting possibilities. From Indian prosody to Chinese divination, mathematicians spent centuries developing…
Combine no sets at all and set theory says you get the empty setThe union of sets gathers every element that appears in any of them. Merge {1, 2, 3} with {2, 3, 4} and you get {1, 2, 3, 4}, since a set never lists anything twice. Push the idea…
Combined arms is the art of forcing an enemy into a fatal dilemmaTrue combined arms is not just using different military units at once. It is the tactical synchronization of forces so that an enemy's defensive reaction to one threat inevitably …
Combining baricitinib and remdesivir may speed recovery for hospitalized Covid-19 patientsA randomized, placebo-controlled trial of 1,033 hospitalized adults found that combining the Janus kinase inhibitor baricitinib with remdesivir helped patients recover faster than…
Combining graphene with metal-organic frameworks creates versatile materials for energy and waterResearchers have identified a promising way to overcome the limitations of metal-organic frameworks (MOFs) by combining them with graphene. While MOFs are excellent porous materia…
Combining metal-organic frameworks with other materials creates powerful new multifunctional compositesA review of recent advances in chemistry found that integrating metal-organic frameworks (MOFs) with other functional materials can create new composites. These hybrid materials e…
Combining molybdenum disulfide and graphene boosts hydrogen production from titanium dioxideResearchers have developed a new composite material that enhances the production of hydrogen through photocatalytic water splitting. By growing titanium dioxide nanocrystals along…
Combining multiple deep learning models can help overcome complex tuning challengesA review of deep learning research found that while deep learning models excel at solving complex problems, they are notoriously difficult and time-consuming to tune. Researchers …
Combining multiple signals improves the accuracy of computer-based emotion recognitionResearchers exploring human-computer interaction found that systems using multiple types of data—such as facial expressions, physiological signs, and neuroimaging—are more effecti…
Combining radiotherapy and chemotherapy doubles two-year survival in glioblastomaA review of clinical management for glioblastoma and other malignant gliomas, the most common primary brain cancers, found that current standard treatment—radiotherapy combined wi…
Combining three types of cosmic measurements provides a clearer picture of the universeAstronomers analyzing data from the Dark Energy Survey found consistent results when combining three different methods of measuring the universe's large-scale structure. By lookin…
Come and See waited eight years for Soviet censors, then refused to compromiseElem Klimov wanted the world to know about the hundreds of Belarusian villages burned during the Nazi occupation. Soviet film bureaucrats blocked his script as too realistic for e…
Comecon: The Soviet-led economic bloc that struggled to trade without a marketEstablished in 1949 to coordinate the economies of the Soviet bloc, Comecon was an ambitious attempt to integrate socialist states. Yet, it faced a fundamental flaw: without marke…
Comedy once meant happy endings, not only punch linesGreeks and Romans reserved comedy for stage plays that ended well. Aristotle called it imitation of people worse than average—specifically ridiculous, a species of the ugly—while …
Comet Encke is the solar system's fastest periodic visitor, yet it bears a stranger's name.With an orbital period of just 3.3 years, Comet Encke is the swiftest periodic comet known. Though first spotted by Pierre Mechain in 1786, it is named for the mathematician who l…
Comet ISON may have shattered during a major heating eventAstronomers believe there is a more than 90% probability that Comet ISON broke apart on Thanksgiving Day. As the comet approached the sun, intense heat may have destroyed it, leav…
Comet ISON: The Oort Cloud Traveler That Met a Fiery End Near the SunDiscovered in 2012, Comet ISON was a pristine time capsule from the solar system's birth. As it plunged toward the sun in 2013, it became the subject of the most extensive coordin…
Comets are named for long hair and built like fried ice creamThe Greeks called them long-haired stars, and the word comet still carries that image. Up close, a comet's core is a loose clump of ice, dust and rock only kilometres wide, yet it…
Comets possess two distinct tails, each driven by different solar forcesA comet's tail is not a single structure but a dual phenomenon. One is a river of dust reflecting light, while the other is a plasma stream of ionized gas. These two tails react d…
Intellect Plus