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.

La manera de aprender a leer ha cambiado: este libro con pictogramas acompaña al niño en sus primeros pasos en la mayor aventura de todas. ¿Una casa que cabe en un bolsillo? ¿Un niño que es el rey y manda comer obligatoriamente helado? ¿Un perro que se cree que es una gallina? ¿Una vaca pedorra? Aprende a leer mientras te diviertes con estas disparatadas historias. Los pictogramas facilitan la atención, facilitan la relación entre imagen y grafía y motivan a los peques al hacerlo por sí solos.

Born in Warsaw, Poland, on November 7, 1867, Marie Curie was forbidden to attend the male-only University of Warsaw, so she enrolled at the Sorbonne in Paris to study physics and mathematics. There she met a professor named Pierre Curie, and the two soon married, forming one of the most famous scientific partnerships in history. Together they discovered two elements and won a Nobel Prize in 1903. (Later Marie won another Nobel award for chemistry in 1911.) She died in Savoy, France, on July 4, 1934, a victim of many years of exposure to toxic radiation.

Medio sol amarilloes una novela épica y magistral, que cuestiona el colonialismo, las alianzas étnicas y la responsabilidad moral de un conflicto, el de Nigeria, apoyado por las potencias mundiales. Medio sol amarillorecrea un período de la historia contemporánea de África: la lucha de Biafra por conseguir una república independiente de Nigeria, y la consecuente guerra civil que segó la vida de miles de personas. Con gran empatía y la naturalidad de una narradora comprometida, Chimamanda Ngozi Adichie recrea la vida de tres personajes atrapados en las turbulencias de la década: el...

After several military accomplishments, Mirabeau B. Lamar entered the world of Texas politics. Elected president in 1838, Lamar faced a host of problems with mixed success. His advocacy for education laid the framework for public education in Texas.