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Who were the earliest Americans? When, how, and from where did they enter and spread across the continent? And what is their relationship to modern Native Americans? Anthropologists develop theories to answer these questions based on the evidence they discover. Their theories—and the discoveries that prove and disprove them—are highlighted in this fascinating volume, full of awe-inspiring facts and incredible breakthroughs. Readers will feel like anthropologists and archaeologists themselves as they read about bones and artifacts, and what they reveal about the ancient cultures that roamed...

Besides oil, Texas has long been associated with cattle and agriculture. Learning about these industries will allow readers understand how valuable their development is to the growth of the state of Texas, as well as America's economy.

Un interesante retrato o autorretrato de cada artista nos introduce en cada uno de los capítulos de este formidable libro sobre el mundo de la pintura.A continuación, verás su obra más emblemática a todo color. El ameno y entretenido texto te va a permitir entrar en el taller de cada uno de estos pintores.Y las magníficas ilustraciones en color te olerán a óleo y casi podrás oír el ruido del pincel sobre el lienzo; Dentro del libro también encontrarás algunas ventanitas que te ofrecen más información, como por ejemplo ¿Sabías que...?, con interesantes curiosidades biográficas ...

Each title in an educational series features one letter per page with ample writing space for practice, teaching youngsters how to write each letter of the alphabet in upper case, lower case, and in cursive.