Answer is the rise of Imperialism.
Answer:
The Transcontinental Railroad fundamentally changed the American West. As the United States pushed across North America, railroads connected and populated the growing nation. Railroads also sparked social, economic, environmental, and political change.
The start of Islam is marked in the year 610, following the first revelation to the prophet Muhammad at the age of 40. Muhammad and his followers spread the teachings of Islam throughout the Arabian peninsula. ... The angel recites to him the first revelations of the Quran and informs him that he is God's prophet.
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Coal industry. Looked it up on quizlet