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标题

日期

SCIENCE IN THE NEWS - Dead Sea Scrolls Coming to the Internet

2008-9-23

THIS IS AMERICA - White Sands National Monument: A Wonder of Nature, in New Mexico

2008-9-22

PEOPLE IN AMERICA - Eleanor Roosevelt, 1884-1962: She Was the Most Influential Wife of Any American President

2008-9-21

AMERICAN STORIES - A Princess of Mars, Part Three

2008-9-20

THE MAKING OF A NATION - American History Series: Monroe Doctrine Warns Europe Not to Interfere in the Americas

2008-9-18

EXPLORATIONS - Entrepreneurs Change the World

2008-9-17

SCIENCE IN THE NEWS - Six Different Liver Diseases, All Known by a Common Name: Hepatitis

2008-9-16

PEOPLE IN AMERICA - Franklin Roosevelt, 1882-1945: One of the Greatest Presidents in American History

2008-9-14

AMERICAN STORIES - A Princess of Mars, Part Two

2008-9-13

THE MAKING OF A NATION - American History Series: James Monroe Easily Wins Election in 1816

2008-9-11

EXPLORATIONS - Shadow Wolves Find and Arrest People Trying to Bring Drugs Into US

2008-9-10

SCIENCE IN THE NEWS - 'Dead Zones' Expand in Coastal Waters Around the World

2008-9-9

THIS IS AMERICA - Maurice Sendak's Books Have Helped Redefine Children's Literature

2008-9-8

PEOPLE IN AMERICA - Jessica Tandy, 1909-1994: She Performed in More than 100 Plays and Movies

2008-9-7

AMERICAN STORIES - A Princess of Mars, Part One

2008-9-6

AMERICAN MOSAIC - Serious Songs Give Bite to Death Cab for Cutie's Sixth Album

2008-9-5

THE MAKING OF A NATION - American History Series: War of 1812 Ends With Treaty of Ghent

2008-9-4

EXPLORATIONS - Jimmy Doolittle Is Best Remembered for Leading a Raid on Japan in 1942

2008-9-3

SCIENCE IN THE NEWS - Scientists Find an Explanation for the Northern Lights

2008-9-2

THIS IS AMERICA - Schools Feel Effects of Weak Economy, High Fuel Prices as Classes Begin

2008-9-1

PEOPLE IN AMERICA - Five Labor Leaders Who Improved Conditions for American Workers

2008-8-31

AMERICAN MOSAIC - In New York City, Waterfalls as Public Art (and a Plumber's Dream)

2008-8-29

THE MAKING OF A NATION - American History Series: War of 1812 Ends, but Fighting Continues

2008-8-28

EXPLORATIONS - How English Became a Modern Language

2008-8-27

SCIENCE IN THE NEWS - Scientists Discover New Gorilla Population in Republic of Congo

2008-8-26

THIS IS AMERICA - Democrats Gather in Denver to Nominate Obama and Biden

2008-8-25