Caused rain forest destruction sending animals migrating and making the forest smaller.
The Underground Railroad was the name of the escape routes used by slaves to escape the South and flee to the North. It was a network of special routes and safe houses that were used by both slaves and abolitionists who were sympathetic to their cause of escaping slavery. It started in the late 1700's and ended after the abolition of slavery. Canada was a popular destination, as slavery was prohibited their and had a longer border for easier access.
Answer:
The Yalta Conference essentially confirmed the accords reach in the previous Allied conference at Teheran in 1943, in regards to the unconditional surrender of the Axis powers. What was confirmed in Yalta was the commitment to create a new international organization, better equipped than the previous Society of Nations. This organization would be the United Nations.
Explanation:
The Yalta Conference was the entry point of the Cold War, that would essentially began after the Postdam Conference in 1945. What made Yalta relevant, was the commitment to install the United Nations as a heir of the former Society of Nations of the 1920's, but with the aim that this new organization would have a better way of coercing nations to respect international laws. However the conference also saw the Soviet Union using the leverage it had regarding the war, to make the US help it to force Britain to accept for example the Soviet occupation of Poland, in exchange for the Soviet war declaration over Japan.
The map below shows us the migratory patterns of the Indo-Europeans, and with their migrations, the spread of the their language as well. As the Indo-Europeans started to migrate from their homeland in the lowlands between the Black and Caspian seas, they were spreading their culture with them. This led to their language seemingly distant regions that do not seem connected. As they were moving in different areas, Europe, India, Iran, Central Asia, their language started to change, so lot of new dialects emerged, and later those dialects gave birth to new languages, though all of those languages kept their basis and remained part of the same linguistic family.