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.

Pets! We love them, and we take good care of them. Learn all about what Guinea Pigs need to be happy and playful pets. ¡Las mascotas! Las amamos y las cuidamos mucho. Aprende todo sobre qué necesitan los Cobayos para estar felices y ser mascotas juguetonas.

The second book from Dr. Maria Uribe, a Senior Instructor at the University of Colorado Denver in the School of Education & Human Development, Is There Something Wrong With Me? provides concrete examples of micro-aggressions and discrimination--rooted in race, ethnicity, and gender--that children face. Designed to elicit empathy and conversation about identity and belonging, the book further suggests at-home and classroom activities to dismantle social bias.

Diego de Torres (1694-1770) ha pasado a la historia como el creador de uno de los textos más importantes de la literatura española, Vida, ascendencia, nacimiento, crianza y aventuras de Don Diego de Torres Villarroel.

Un gigantesco depredador ha destruido el embarcadero de Wala wala, y Bizcoché, Dani y Evan se sumergen en las oscuras aguas del Santuario para descubrir qué es. A bordo de Canelo 1, el sumergible que ha inventado el profesor, explorarán las profundas aguas jurásicas. Verán mosasaurios, megalodones, plesiosauros... ¡y al temibe Depredador X! ¿Podrán escapar? ¡Descúbrelo en esta trepidante aventura!