In 1890, the superintendent of the US Census announced that the American West had been settied to the point that there no long sa frontier lime in the United States. This came to be known as the closing of the frontier. How did the transcontinental railroad and homestead act contribute to this

What makes this speech a primary source? o a. the words are spoken by the president himself. o b. it uses narrative to keep the reader's attention. o c. it was written over 70 years in the past. o d. it contains a strong historical argument.

Which factor has played the most important role in changing the way history is studied over time?

Which of the following scenarios illustrates the cultural impact of expanded regional trade for postclassical civilizations? o a. the byzantine empire rises in place of the roman empire. o b. an islamic scholar attends a university in his hometown. o c. internal disputes weaken a large african empire. o d. an arabian sultan wears a robe made from chinese silk.