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Explore Search Britannica Click here to search Search Britannica Click here to search Login Subscribe Now Subscribe Games & Quizzes History & Society Science & Tech Biographies Animals & Nature Geography & Travel Arts & Culture Money Videos On This Day One Good Fact Dictionary New Articles History & Society Lifestyles & Social Issues Philosophy & Religion Politics, Law & Government World History Science & Tech Health & Medicine Science Technology Biographies Browse Biographies Animals & Nature Birds, Reptiles & Other Vertebrates Bugs, Mollusks & Other Invertebrates Environment Fossils & Geologic Time Mammals Plants Geography & Travel Geography & Travel Arts & Culture Entertainment & Pop Culture Literature Sports & Recreation Visual Arts Companions Demystified Image Galleries Infographics Lists Podcasts Spotlights Summaries The Forum Top Questions #WTFact 100 Women Britannica Kids Saving Earth Space Next 50 Student Center Search Britannica Click here to search Games & Quizzes History & Society Science & Tech Biographies Animals & Nature Geography & Travel Arts & Culture Money Videos May 14, 2024 Uncharted Territory Today marks the 220th anniversary of the start of the Lewis and Clark Expedition . Fresh off of the Louisiana Purchase , Pres. Thomas Jefferson tapped his young secretary, Meriwether Lewis (who brought his friend William Clark ), to chart the wilderness west of the Mississippi River to the Pacific Ocean . In addition to drafting detailed maps, Lewis identified 178 plants and 122 animals new to science, including the grizzly bear and prairie dog , on the storied 8,000-mile trek. The Importance of Native American Women to the Expedition Encyclopædia Britannica, Inc. The True Story of Sacagawea © Ace Diamond/Shutterstock.com All About the 8,000-Mile Expedition Encyclopædia Britannica, Inc. Discover More Video: How the Louisiana Purchase Led to the Forcible Removal of Native Tribes Timeline: How the Lewis and Clark Expedition Unfolded The A-List of B-Films Roger Corman , the B-movie mogul whose career spanned six decades, died last Thursday. He was 98 . Corman produced or directed hundreds of films, and in 2009 he was given an honorary Academy Award for lifetime achievement. His influence on American cinema was huge, in large part because of his discovery and promotion of young actors and directors, including the following. Directors Corman’s low-budget productions gave many noted directors their big break, including Francis Ford Coppola , Martin Scorsese , Peter Bogdanovich , James Cameron , and Jonathan Demme . Corman also acted, and would appear in the films of those he helped, including minor roles in Coppola’s The Godfather: Part II and Demme’s Philadelphia . Actors Several actors who became stars honed their skills in Corman productions, including Robert De Niro , Ellen Burstyn , Dennis Quaid, and Diane Ladd. Jack Nicholson made his big-screen debut in Corman’s The Cry Baby Killer (1958), and played in several of his productions, including The Raven , The Trip , and Corman’s most enduring film... Productions The Little Shop of Horrors spawned a wave of stage musicals and remains his most popular film. Corman (pictured below) produced and directed the 1960 cult-classic, which was shot in just two days and one night. He also made a series of films based on the works of Edgar Allan Poe , most of which starred Vincent Price . © 1960 Santa Clara Productions, Inc. with The Filmgroup Popular on Britannica Articles Mother’s Day Eurovision Song Contest winner Jonestown Boxing Day vampire Malaysia Airlines flight 370 disappearance HAARP Anna Jarvis Malaysia Airlines flight 17 aurora Show More Show Less Features Did Marie-Antoinette Really Say Let Them Eat Cake”? What Causes the Northern and Southern Lights? How Many Electoral College Votes Does Each U.S. State Have? How Did Helen Keller Fly a Plane? Which Religion Is the Oldest? 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As disinformation and misinformation abound, it’s critical to tell the difference between news and opinion. Here’s how. The world’s biggest cities, by population Asian locales claim the first seven spots on this list. Where does your metro rank against the world’s most-inhabited? Interactive: Periodic Table of the Elements All matter is built from the same 118 building blocks, but which are which? Click the symbols and find out. Trending Quizzes See All Quizzes Where in America is That? Crisscross the U.S. by placing these famous landmarks. From Athena to Zeus: Basics of Greek Mythology Do you know which hero took a dip in the River Styx? Or what mysteries lurk inside the Labyrinth? Ultimate Animals Quiz What is a rattlesnake’s rattle made of? What animals can go over 180 miles an hour? Guess the Language! Quiz Can you recognize a language by its greeting? Best Picture Movie Quote Quiz Take this quiz or you may regret it. 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Kamala Harris’s path to the U.S. vice presidency How Chinese immigrants built the Transcontinental Railroad Who was the first Asian American woman in the U.S. Navy? Britannica Premium Subscription Unlock Exclusive Content! Britannica’s content is among the most trusted in the world. Every article is written, and continually fact-checked, by our experts. Subscribe to Britannica Premium and unlock our entire database of trusted content today. Subscribe Now! Explore Britannica History & Society Where Bonnie and Clyde Died, and Still Live On Timeline of the Titanic’s Final Hours Science & Tech How Do Tornadoes Form? When Does Summer Start? Biographies Dalip Singh Saund Mazie Hirono Animals & Nature 10 Organisms Named for David Attenborough Incredible Facts About Bees Geography & Travel Exploring 7 of Earth’s Great Mountain Ranges Are Volcanoes Dangerous When They’re Not Erupting? 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