During the Cold War, the Soviet Union launched the satellite Sputnik, which was a major event because it launched the "space race" between the Soviet Union and the US.
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Northern portion of the Louisiana purchase and the Oregon territory
To give debtors from Britain a fresh start
The 1839 Treaty of London was a treaty between Great
Britain, Austria, France, Prussia, and Russia, on the one part, and The
Netherlands, on the other. It derives its significance from Article 7 that
leads Britain to protect the neutrality of Belgium in the event of the latter's
invasion.