What makes the U.S. government uniquely American? Learn about the separation of powers and the institutions and practices that constitute U.S. democracy. The structure of the U.S. government is defined by the Constitution, but the ways in which institutions and officials meet the requirements of the Constitution are open to interpretation.
The Berlin Wall—symbol of a divided city within a divided nation within a divided continent—was grounded in decades-old historical divisions at the end of World War II. In August 1961, the German Democratic Republic began to construct the Berlin Wall. At first it was barbed wire, but soon it expanded into a 5 meter high 165 kilometer long network of concrete walls topped with barbed wire, and guarded with gun emplacements, watchtowers, and mines. This book recounts how and why that wall crumbled.
The world’s great cats face threats from habitat loss, dwindling prey, and conflicts with humans, including poaching and trafficking.
For centuries, humans have marveled at the ability of birds to fly thousands of kilometers across oceans, mountains and national borders. Twice a year, an estimated 50 billion birds undertake extensive journeys to breed and feed.
Marine protected areas (MPAs) are safe havens for fish, whales, dolphins, corals, sea turtles and thousands of other precious plants and animals in the sea. They are also living laboratories for scientific research. U.S. partnerships with other countries and regional organizations are helping to conserve and protect the ocean’s irreplaceable resources by establishing effectively managed marine protected areas in more regions around the world.
Many species are in dramatic decline due to poaching and illegal trade in live animals and their body parts. For example, elephants are poached for ivory—one is killed every 15 minutes— tigers for their skins and bones, rhinos for their horns and sharks for their fins.
Diverse species of wildlife inhabit the Earth’s two polar regions which are our coldest and driest areas. Emperor penguins huddle together on the ice, incubating eggs in winters that bring temperatures as low as negative 48 degrees Celsius. Similarly, the tiny Arctic tern is the only terrestrial resident of both polar regions, flying 80,000 kilometers every year round-trip to catch the Antarctic summer before returning to its Arctic breeding grounds.
For Earth Day on April 22, the 2018 Preserve the Earth poster illustrated by artist Cathie Bleck depicts marine species—dolphins, whales, birds, seals, crabs, tiny plankton along with many others—at risk from ocean debris.
Preserve the Earth 2018: Protect Marine Species from Ocean Debris—Commemorative Postcard Set (English only)
A colorful set of six commemorative postcards feature our 2018 Preserve the Earth poster depicting marine species at risk from ocean debris. Five other Preserve the Earth posters from previous years complete this set.
This free poster for Women’s History Month acknowledges her achievements and the achievements of all women in music.
Beginning in the 1950s, the U.S. Department of State sent dozens of America’s greatest jazz musicians to tour the globe becoming known as “the Jazz Ambassadors.” Recognizing the cross-cultural appeal of jazz, American Jazz Ambassadors were able to transcend national boundaries, build new cultural bridges, and tell a larger story about freedom in America.