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.

Hace mucho, mucho tiempo, existieron en el mundo 7 construcciones arquitectónicas que desafiaron los conocimientos y medios de que disponían los hombres de aquella época. p.p1 {margin: 0.0px 0.0px 6.0px 0.0px; text-align: justify; font: 16.0px Arial; color: #000000; -webkit-text-stroke: #000000} span.s1 {font-kerning: none} En el mundo antiguo, estas maravillosas construcciones fueron relatadas, en especial, por los antiguos griegos, sobreviviendo su historia y sus leyendas hasta nuestros días. Os presentamos esas 7 maravillas en este libro de forma muy gráfica y esquemática. Con...

Correlated to the science curriculum, our Spanish-language series describes how the types of homes that different animals build reflect adaptations to their environments. Through simple, easy-to-follow text, each volume looks at each type of home as a shelter from predators and weather and a place to store food and raise young. Young readers also learn how animal homes and human homes fulfill similar needs and functions.

"Esta delicada historia enfoca la relación entre dos niñas que se encuentran en un campamento veraniego y describe la cálida amistad que se desarrolla entre ambas pese a que una de ellas tiene el síndrome de Down"--P. [4] of cover.

A dictionary tailored for the Latin American market is an ideal supplement to the middle school curriculum and includes up-to-date definitions, example sentences, synonyms and antonyms, and more. Original.