Germs Are Not for Sharing / Los gérmenes no son para compartir

Tells the story, through graphic novel format, of Harriet Tubman and her life as a leader on the Underground Railroad.

California became a territory in the United States when the Treaty of Guadalupe Hidalgo was signed in 1848. That treaty ended the Mexican War. Several days before its signing, gold was discovered at Sutter’s Mill in what is now Sacramento. The non-Native population of the territory was less than one thousand in 1848, but the gold rush increased that number to one hundred thousand by the end of 1849. The gold rush not only made many people wealthy, it brought ecologic devastation while speeding up California’s statehood. This book richly explores this interesting history.

Biographical And Science-Related Information Examining The Life Of Robert Fulton And His Invention Of The First Steamboat To Work Successfully.

¿Qué tipos de animales viven en la selva tropical? Entra a la jungla para aprender todo acerca de estas criaturas fascinantes.