In what year did our first national government operate?

Mesopotamians used the plow to make their farmland more productive. which of the following was necessary for the use of the plow? a. the domestication of oxen b. the creation of government c. the invention of writing d. the establishment of cities

Why does c. wright mills identify critical thinking as one of the most important criteria for the development of intellectual craftsmanship? why is constantly being aware of the biased nature of your reactions and interactions (what c. wright mills calls self-reflexive) key to the development of that critical thinking? finally, why is keeping a file important, how can it lean to intellectual curiosity which can foster critical thinking and to develop a keen analytical mind?

What greek scientist created a screw to move water for irrigation?