How are placer mining, hydraulic mining, and hard-rock mining different?

Why was standardization of tracks and time zones important for railroads?

Who rose to be one of New York's most powerful party bosses? a. Thomas Pendergast c. George Plunkitt b. Cornelius Vanderbilt d. Zalmen Yoffeh

Which of the following led to the growth and development of Jamestown? A Spanish Armada B cultivation of tobacco C the Anglo-Powhatan Wars D House of Burgess

How was campaigning for the president in the 1800s different than it is today

Explain the importance of the Earl of Essex in Elizabethan England.

Who invented menstrual pads

Which of the following was a feature of war communism? A. Churches were given land to manage. B. People were encouraged to open businesses. C. The government sold government property to private individuals. D. The government seized private property.

What were major reasons for Europe to colonize the American continent

Is there check and balances in federalism?

Mesopotamian civilizations were organized into city-states. All of the following are true about these city-states except: a.