History was a driving force behind such migration, since humans tended to move to new territory when they lacked food, shelter, or other resources--meaning that most of the conflicts throughout history have been driven by the same forces that drove migration out of Africa.
Answer:
On September 14, 1814, Francis Scott Key pens a poem which is later set to music and in 1931 becomes America's national anthem, “The Star-Spangled Banner.” The poem, originally titled “The Defence of Fort M'Henry,” was written after Key witnessed the Maryland fort being bombarded by the British during the War of 1812.
Geography The Age of Exploration caused ideas, technology, plants, and animals to be exchanged around the world. Government Several European countries competed for colonies overseas, both in Asia and the Americas. Economics Developments during the Age of Exploration led to the origins of modern capitalism.
The two Germans who developed the economic and political philosophy known as communism are "<span>Marx and Engels", although these ideas quickly spread to Russia, which launched the Revolution of 1917. </span>
The United States was willing to pay more per mile for the Gadsden Purchase than for the Mexican Cession because the Gadsden Purchase gave money to the United States to build a railroad.