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.

Qué diversión tiene mamá con su pequeño. Los ejemplos sencillos de la vinculación de las madres con sus hijos ayudan a desarrollar habilidades positivas de crianza y a desarrollar familias fuertes.

Una colección de historias desde el borde de Argentina hasta Alaska Quince mil años antes de que los Europeos pisarán las Américas, la gente ya se había propagado de punta a punta y de costa a costa. Como todos los humanos, estos Nativos Americanos buscaban comprender su lugar en el universo, la naturaleza de su relación con lo divino, y el origen del mundo en el que habían emergido sus antepasados. Las respuestas se encuentran en sus historias sagradas. La autora María García Esperon, la ilustradora Amanda Mijangos, y el traductor David Bowles nos han regalado un tesoro. Sus...

In this Spanish title, learn causes of extinction and what problems extinction causes for animals, wildlife, and humans alike.

Winning the American Revolution was just the first step. After defeating Great Britain, the American colonies were united in name only. How would this independent nation be governed? During the summer of 1787, representatives went to Philadelphia to solve the problem. The result, the U.S. Constitution, created a new government, establishing the foundations of a free nation and setting a new course for history.