El ferrocarril transcontinental (The Transcontinental Railroad)

People today refer to the Midwestern and prairie states as flyover country. During the Civil War, crossing those areas was the biggest obstacle in uniting the East and West Coasts of our divided nation. An act of Congress in 1862 authorized the Central Pacific and the Union Pacific railroad companies to build a railroad that would link the coasts. Seven years later, on May 10, 1869, an overwhelmingly immigrant labor force completed the task when a rail line was join in Promontory, Utah. The states had become united at last.

Discover 25 women who were trailblazers in science, technology, architecture, engineering, and more. Learn about some of the women who defied expectations and introduced the world to new ideas and creations big and small. Fully translated Spanish text.

Tailored to the Language B syllabus, our full-colour IB coursebook, Mañana, contains everything you need for your two-year teaching course.

Utilizando el mismo estilo artístico y con el formato de pasta dura, esta última adición a la exitosa serie Biblia para mí guiará a los niños a través de más de veinte oraciones. Estas oraciones cortas y especiales son presentadas en una variedad de estilos y ya sean de manera divertida, rítmica o expresiones sencillas de fe, los niños sabrán que han dedicado un tiempo hablando con Dios.

In the middle of the 1830s, Texans fought against the Mexican government for its independence. During the Texas Revolution, many leaders emerged, such as Sam Houston, Lorenzo de Zavala, William Travis, Francita Alavez, Sidney Sherman, Susanna Dickinson, James Bowie, and Juan Seguín. This captivating biography has been translated into Spanish and allows readers to learn about the incredible accomplishments of these people and what they did to make an impact on the Texas Revolution. Featuring alluring images, engaging facts and sidebars, supportive text, and a glossary and index, this book...