Valores sociales

Examines the nature of human rights, including the gradual development of the idea that all people, regardless of gender, color, or wealth, are citizens with rights, not just subjects with duties, and discusses the growth of social rights and the case against torture.

Christopher Columbus most likely wasn’t the person to discover the Americas. He wasn’t even the first European to do so! Despite that, his three trips to the Western Hemisphere led to many more European explorers heading in that direction. In this volume, readers familiar with Columbus’s travels on the Nina, Pinta, and Santa Maria can learn who Columbus was beyond his travels. Supported by full-color and historic images, interesting main content turns what readers think they know about the life of Columbus on its head while expounding on an important period in the history of the world.

What is work? You may think work is doing chores or going to a job, but you do work every time you move something from one place to another. With experiments that demonstrate these fundamental concepts, discover how you work, and how simple machines make doing work easier.

Highlights the life and political career of the forty-fourth president of the United States who, after years of struggling with his identity and place in society, found his niche in public service and made history as the first African American U.S. President ever to be elected.

Esta novela que comienza en la Gran Plaza de El Cairo a principios del siglo XX y que cuenta una doble historia de amor señala en la obra de Amin Maalouf la incorporación a su obra de un nuevo elemento de reflexión, como es la preocupación por la "falla horizontal" que divide el mundo en un Norte de población estable, cada vez más enriquecida, y un Sur de población creciente que se empobrece progresivamente. Si bien acaba confiando en "la feminidad del mundo" y en la inagotable capacidad de supervivencia que caracteriza al ser humano, "El primer siglo después de Béatrice", pese a su...