{"/e/pony-express/alexander-majors/": {"t": "Alexander Majors", "s": "Co-founder of the Pony Express and overland freight entrepreneur."}, "/e/pony-express/william-hepburn-russell/": {"t": "William Hepburn Russell", "s": "Businessman and partner behind the Pony Express."}, "/e/pony-express/william-bradford-waddell/": {"t": "William Bradford Waddell", "s": "Co-founder of the Pony Express and cautious businessman."}, "/e/pony-express/ben-holladay/": {"t": "Ben Holladay", "s": "Stagecoach King who acquired the Pony Express."}, "/e/pony-express/central-overland-california-and-pikes-peak-express-company/": {"t": "Central Overland California and Pikes Peak Express Company", "s": "Parent company of the Pony Express."}, "/e/pony-express/south-pass-wyoming/": {"t": "South Pass (Wyoming)", "s": "Lowest Continental Divide crossing in the Central and Southern Rockies."}, "https://codexery.com/u-s-states/e/u-s-states/missouri/": {"t": "Missouri", "s": "Gateway to the West, birthplace of ragtime and Kansas City jazz."}, "https://codexery.com/folklore-of-the-united-states/e/folklore-of-the-united-states/american-frontier/": {"t": "American frontier", "s": "The era of westward expansion that shaped American identity."}, "https://codexery.com/rebellions-against-the-united-states/e/rebellions-against-the-united-states/american-civil-war/": {"t": "American Civil War", "s": "Civil war between the Union and Confederacy over slavery and secession."}, "https://codexery.com/mountain-ranges-and-massifs/e/mountain-ranges-and-massifs/sierra-nevada-u-s/": {"t": "Sierra Nevada (U.S.)", "s": "The Sierra Nevada: a majestic range of granite peaks, giant sequoias, and alpine lakes.", "i": "https://codexery.com/mountain-ranges-and-massifs/img/mountain-ranges-and-massifs/sierra-nevada-u-s.webp", "c": "Jeffrey Pang from Pittsburgh, PA, USA · via Wikipedia: Sierra Nevada · CC BY 2.0"}, "https://codexery.com/christian-sacred-texts/e/christian-sacred-texts/bible/": {"t": "Bible", "s": "Anthology of sacred texts for Judaism and Christianity."}, "https://codexery.com/languages-and-dialects/e/languages-and-dialects/spanish-language/": {"t": "Spanish language", "s": "A global Romance language originating in the Kingdom of Castile."}, "https://codexery.com/u-s-states/e/u-s-states/wyoming/": {"t": "Wyoming", "s": "Least populous U.S. state, first to grant women's suffrage."}, "https://codexery.com/cities/e/landmark-cities/san-francisco/": {"t": "San Francisco", "s": "The City by the Bay, a center of liberal activism and innovation."}, "https://codexery.com/rivers-of-the-world/e/rivers-of-the-world/missouri-river/": {"t": "Missouri River", "s": "Longest U.S. river, key to westward expansion and Native American history.", "i": "https://codexery.com/rivers-of-the-world/img/rivers-of-the-world/missouri-river.webp", "c": "via Wikipedia: Missouri River · see source"}, "https://codexery.com/coastal-and-marine-features/e/coastal-and-marine-features/chimney-rock-national-historic-site/": {"t": "Chimney Rock National Historic Site", "s": "Landmark for westward trails on the Great Plains."}, "/e/pony-express/carson-sink/": {"t": "Carson Sink", "s": "Playa and former lake terminus in Nevada's Carson Desert."}, "https://codexery.com/cities/e/landmark-cities/new-york-city/": {"t": "New York City", "s": "The most populous city in the United States, a global center of finance, culture, and diplomacy."}, "https://codexery.com/telegraph-keys-and-codes/e/telegraph-keys-and-codes/telegram/": {"t": "Telegram", "s": "A written message transmitted by telegraph, popular from the 19th to mid-20th century."}, "https://codexery.com/forms-of-government/e/forms-of-government/mayor/": {"t": "Mayor", "s": "Highest-ranking official in a municipal government."}, "https://codexery.com/historical-figures/e/notable/abraham-lincoln/": {"t": "Abraham Lincoln", "s": "16th president who led the Union through the Civil War and abolished slavery."}, "/e/pony-express/carson-river/": {"t": "Carson River", "s": "Nevada river with Pony Express history and mercury contamination."}, "https://codexery.com/authors-poets/e/authors-and-poets/mark-twain/": {"t": "Mark Twain", "s": "American writer, humorist, and essayist, author of Adventures of Huckleberry Finn."}, "https://codexery.com/people-from-american-folklore/e/people-from-american-folklore/buffalo-bill/": {"t": "Buffalo Bill", "s": "American soldier, bison hunter, and showman of the Old West.", "i": "https://codexery.com/people-from-american-folklore/img/people-from-american-folklore/buffalo-bill.webp", "c": "via Wikipedia: Buffalo Bill · see source"}, "https://codexery.com/leaders-of-revolution-and-independence/e/leaders-of-revolution-and-independence/sitting-bull/": {"t": "Sitting Bull", "s": "Hunkpapa Lakota leader who resisted U.S. policies and inspired a major victory.", "i": "https://codexery.com/leaders-of-revolution-and-independence/img/leaders-of-revolution-and-independence/sitting-bull.webp", "c": "via Wikipedia: Sitting Bull · see source"}, "https://codexery.com/plateaus-and-plains/e/plateaus-and-plains/great-basin-desert/": {"t": "Great Basin Desert", "s": "A high-elevation cold desert between the Sierra Nevada and Wasatch Range.", "i": "https://codexery.com/plateaus-and-plains/img/plateaus-and-plains/great-basin-desert.webp", "c": "via Wikipedia: Great Basin Desert · see source"}, "https://codexery.com/former-spanish-colonies/e/former-spanish-colonies/colorado/": {"t": "Colorado", "s": "A landlocked state with mountains, plains, and a history of gold rushes."}, "https://codexery.com/u-s-states/e/u-s-states/nevada/": {"t": "Nevada", "s": "Landlocked Western state known for silver, gambling, and libertarian laws."}, "https://codexery.com/u-s-states/e/u-s-states/utah/": {"t": "Utah", "s": "A landlocked state shaped by Mormon settlement and desert geography."}, "https://codexery.com/people-from-american-folklore/e/people-from-american-folklore/kit-carson/": {"t": "Kit Carson", "s": "Frontiersman, fur trapper, wilderness guide, Indian agent, and U.S. Army officer."}, "https://codexery.com/coastal-and-fluvial-geomorphology/e/coastal-and-fluvial-geomorphology/endorheic-basin/": {"t": "Endorheic basin", "s": "Closed drainage basins with no outflow to oceans."}, "https://codexery.com/explorers-and-conquistadors/e/explorers-and-conquistadors/john-c-fr-mont/": {"t": "John C. Frémont", "s": "Explorer, politician, and first Republican presidential nominee."}, "/e/pony-express/pony-express/": {"t": "Pony Express", "s": "A fast mail service linking Missouri and California in 10 days."}, "https://codexery.com/chemistry-materials/e/chemistry-and-materials/mercury-element/": {"t": "Mercury (element)", "s": "A heavy, silvery liquid metal with unique physical properties and high toxicity."}, "https://codexery.com/carcinogenesis/e/carcinogenesis/carcinogen/": {"t": "Carcinogen", "s": "Agents that promote cancer development through DNA damage."}, "https://codexery.com/historical-eras/e/historical-eras/middle-ages/": {"t": "Middle Ages", "s": "The middle epoch between classical antiquity and the modern period.", "i": "https://codexery.com/historical-eras/img/historical-eras/middle-ages.webp", "c": "via Wikipedia: Middle Ages · see source"}, "https://codexery.com/wading-birds/e/wading-birds/white-faced-ibis/": {"t": "White-faced ibis", "s": "A colonial marsh-nesting ibis with a pink face bordered by white feathers."}, "https://codexery.com/birds-of-north-america/e/birds-of-north-america/american-white-pelican/": {"t": "American white pelican", "s": "Large white pelican with a distinctive breeding-season bill horn."}, "https://codexery.com/freshwater-fish/e/freshwater-fish/rainbow-trout/": {"t": "Rainbow trout", "s": "A widely introduced trout species with an anadromous steelhead form."}, "https://codexery.com/canadian-folklore/e/canadian-folklore/hudson-s-bay-company/": {"t": "Hudson's Bay Company", "s": "North America's oldest corporation, liquidated in 2025."}, "https://codexery.com/birds-of-the-united-states/e/birds-of-the-united-states/double-crested-cormorant/": {"t": "Double-crested cormorant", "s": "A widespread North American cormorant with distinctive nuptial crests."}, "https://codexery.com/wading-birds/e/wading-birds/snowy-egret/": {"t": "Snowy egret", "s": "A small white heron once hunted for its plumes."}, "https://codexery.com/birds-of-prey-and-waterbirds/e/birds-of-prey-and-waterbirds/black-crowned-night-heron/": {"t": "Black-crowned night heron", "s": "A widespread nocturnal heron known for bait fishing and urban adaptability."}, "https://codexery.com/fish/e/fish/carp/": {"t": "Carp", "s": "Freshwater fish of the family Cyprinidae, valued and invasive worldwide."}, "https://codexery.com/motor-sports/e/motor-sports/mountain-biking/": {"t": "Mountain biking", "s": "Off-road cycling sport using specially designed mountain bikes."}, "https://codexery.com/geomorphology/e/geomorphology/river-delta/": {"t": "River delta", "s": "Landform formed by sediment deposition at a river mouth."}, "https://codexery.com/linguistic-concepts-and-phenomena/e/linguistic-concepts-and-phenomena/morphology-linguistics/": {"t": "Morphology (linguistics)", "s": "Study of word structure and formation in language."}, "https://codexery.com/canals-and-artificial-waterways/e/canals-and-artificial-waterways/erie-canal/": {"t": "Erie Canal", "s": "Historic New York canal connecting the Hudson River to Lake Erie."}, "https://codexery.com/u-s-states/e/u-s-states/ohio/": {"t": "Ohio", "s": "Midwestern U.S. state, birthplace of seven presidents and aviation."}, "https://codexery.com/historical-figures/e/leaders/ulysses-s-grant/": {"t": "Ulysses S. Grant", "s": "18th U.S. President and Commanding General of the Union Army"}, "https://codexery.com/u-s-states/e/u-s-states/texas/": {"t": "Texas", "s": "Second-largest U.S. state by area, but first in Fortune 500 headquarters and gross state product."}, "https://codexery.com/u-s-states/e/u-s-states/kentucky/": {"t": "Kentucky", "s": "Landlocked Southeastern U.S. state, known for horses, bourbon, and coal.", "i": "https://codexery.com/u-s-states/img/u-s-states/kentucky.webp", "c": "TylerKutschbach · CC BY-SA 4.0"}, "https://codexery.com/u-s-states/e/u-s-states/oregon/": {"t": "Oregon", "s": "33rd state, known for Crater Lake and Mount Hood."}, "https://codexery.com/us-cities/e/us-cities/santa-fe-new-mexico/": {"t": "Santa Fe, New Mexico", "s": "Oldest state capital in the U.S., founded in 1610.", "i": "https://codexery.com/us-cities/img/us-cities/santa-fe-new-mexico.webp", "c": "Netherzone · CC BY-SA 4.0"}, "https://codexery.com/american-whiskey/e/american-whiskey/mccormick-distilling-company/": {"t": "McCormick Distilling Company", "s": "Oldest operating distillery west of the Mississippi at its original location.", "i": "https://codexery.com/american-whiskey/img/american-whiskey/mccormick-distilling-company.webp", "c": "via Wikipedia: McCormick Distilling Company · see source"}, "https://codexery.com/major-wars/e/major-wars/mexican-american-war/": {"t": "Mexican–American War", "s": "The Mexican–American War, known in the United States as the Mexican War and in Mexico as the United States intervention in Mexico, was an invasion of Mexico by "}, "https://codexery.com/band-of-brothers/e/factions/united-states-army/": {"t": "United States Army", "s": "The service Easy Company fought in.", "i": "https://codexery.com/band-of-brothers/img/factions/united-states-army.webp", "c": "via Wikipedia: United States Army · see source"}, "https://codexery.com/national-park-administrators/e/national-park-administrators/national-park-service/": {"t": "National Park Service", "s": "Preserving natural and historic resources for public enjoyment."}, "https://codexery.com/historical-figures/e/notable/franklin-d-roosevelt/": {"t": "Franklin D. Roosevelt", "s": "32nd US president who led the nation through the Great Depression and World War II."}, "https://codexery.com/historical-figures/e/notable/dwight-d-eisenhower/": {"t": "Dwight D. Eisenhower", "s": "34th president of the United States and Supreme Commander of Allied forces in Europe during World War II."}, "https://codexery.com/volcanology/e/volcanology/hot-spring/": {"t": "Hot spring", "s": "A spring produced by geothermally heated groundwater.", "i": "https://codexery.com/volcanology/img/volcanology/hot-spring.webp", "c": "Continental Stereoscopic Company · Public domain"}, "https://codexery.com/cities/e/capitals/washington-d-c/": {"t": "Washington, D.C.", "s": "The federal capital city of the United States, anchored on the Potomac River."}, "https://codexery.com/explorers/e/great-explorers/the-lewis-and-clark-expedition/": {"t": "The Lewis and Clark Expedition", "s": "The Lewis and Clark Expedition sought a direct water route across North America for commerce, with scientific research as a secondary objective.", "i": "https://codexery.com/explorers/img/great-explorers/the-lewis-and-clark-expedition.webp", "c": "Carte Lewis-Clark Expedition-fr.svg : Sardon derivative work: rowanwindwhistler  · CC BY-SA 3.0"}, "https://codexery.com/u-s-states/e/u-s-states/montana/": {"t": "Montana", "s": "Big Sky Country"}, "https://codexery.com/u-s-states/e/u-s-states/idaho/": {"t": "Idaho", "s": "The Gem State", "i": "https://codexery.com/u-s-states/img/u-s-states/idaho.webp", "c": "TylerKutschbach · CC BY-SA 4.0"}, "https://codexery.com/historical-figures/e/explorers/john-jacob-astor/": {"t": "John Jacob Astor", "s": "The first multi-millionaire in the United States, who built his fortune on fur, opium, and New York real estate.", "i": "https://codexery.com/historical-figures/img/explorers/john-jacob-astor.webp", "c": "John Wesley Jarvis · via Wikipedia: John Jacob Astor · Public domain"}, "https://codexery.com/legal-scholars-and-political-theorists/e/legal-scholars-and-political-theorists/james-madison/": {"t": "James Madison", "s": "Founding Father, fourth president of the United States and \"Father of the Constitution\"", "i": "https://codexery.com/legal-scholars-and-political-theorists/img/legal-scholars-and-political-theorists/james-madison.webp", "c": "John Vanderlyn · via Wikipedia: James Madison · Public domain"}, "https://codexery.com/explorers-navigators/e/explorers-and-navigators/benjamin-bonneville/": {"t": "Benjamin Bonneville", "s": "American officer and explorer who blazed parts of the Oregon Trail."}, "https://codexery.com/nbc-western-dramas/e/nbc-western-dramas/wagon-train/": {"t": "Wagon Train", "s": "A wagon train's journey across the American frontier."}, "https://codexery.com/periodic-table-elements/e/periodic-table-and-elements/gold/": {"t": "Gold", "s": "A noble metal prized for beauty, rarity, and resistance to corrosion."}}