Stuart A Kallen

In the early 1980s, doctors sounded the alarm. A mysterious new disease-acquired immunodeficiency syndrome, or AIDS-was spreading around the world. While many of the first AIDS patients were gay men, no one seemed to be immune from the deadly blood-borne disease. Researchers set to work to discover what was causing AIDS. They suspected a virus. Two teams of scientists-one in the United States and one in France-worked tirelessly to identify the virus...

En el Pacífico Sur, en 1944 y 1945, se libraron batallas militares entre Estados Unidos y Japón. Rodeados del traqueteo de las balas y las explosiones de las bombas, un grupo de marines navajos enviaba mensajes secretos de un lado a otro. Usaron un código que crearon a partir del idioma navajo, y que el enemigo nunca pudo descifrar. Estos jóvenes fueron reclutados de sus hogares en el suroeste de Estados Unidos. Trajeron consigo una resistencia...

Native people of the Subarctic region of North America have long had their own languages, cultures, and methods for hunting and surviving in this cold, snowy land. Read all about their history and culture.

"The only way we could win was to keep fighting for a long time...the only way we could win was by staying with it."-Cesar Chavez As the sun rose on September 8, 1965, in Delano, California, thousands of acres of ripe grapes hung heavy on the vine. But instead of harvesting the crop, Filipino farmworkers on nine large ranches laid down their tools and walked out of the vineyards in protest of their low wages and dangerous working conditions. The strike...

An introduction to the physical characteristics, behavior, and proper care of Bloodhounds. From poofy poodles to matchless mutts, the Dogs series has something for everyone! Readers will enjoy getting to know the many dog breeds featured in this fun series. Each breed comes to life for kids in large, full-color photographs. Easy-to-read text also encourages young canine enthusiasts to learn about the history, biology, habits, and required care for...

Discusses how droughts, floods, and massive storms along with the human population affects water usage, and explains how the competition for clean water has increased.

Audisee® eBooks with Audio combine professional narration and sentence highlighting to engage reluctant readers! Under cover and in secret during World War II, Allied spies and secret agents worked behind the scenes to send messages, take pictures, and find out about the enemy's plans. These spies broke codes and stopped weapons programs. Eventually, their work helped the Allies win the war. These brave men and women risked their lives to fight back...

Discusses the political, historical, and cultural life of the United States in the 1990s.

Long before Europeans explored the lands and waters above the Arctic Circle, several Inuit groups lived in this harsh, snowy landscape. They spoke different languages and developed unique ways to thrive in the ice and snow. These include making homes from whalebones and animals skins and hunting seals with spears through holes in the ice. Many Inuit still live in the Arctic. While many aspects of Arctic life have changed, the Inuit are working to...

In 1492 Christopher Columbus sailed west from Europe and landed on a Caribbean island in what he thought was India. Over the next twelve years, Columbus made several voyages to the New World, seeking gold and power and bringing other Europeans to start colonies. How can we know what the journey was like for Columbus, his shipmates, and the Taino people he met in the Caribbean? We can study maps and tools Columbus used, excerpts from his journal, and...