The 17th parallel was the provisional military demarcation line between North and South Vietnam established by the Geneva Accords of 1954.
1] Isolationism - a policy of remaining apart from the affairs or interests of other groups, especially the political affairs of other countries.
Intervention - the action or process of intervening.
Imperialism - a policy of extending a country's power and influence through diplomacy or military force
2] Building the Panama Canal, 1903 - 1914. President Theodore Roosevelt oversaw the realization of a long term US goal - a trans-isthmian canal. Throughout the 1800s, American and British leaders and businessmen wanted to ship goods quickly and cheaply between the Atlantic and Pacific coasts.
Common Sense is the answer
A The Big Bang stated 10 billion years ago. And several billion of years before the other events. The Big Bang created the Universe.
Republican nominee for president in 1876 was Rutherford B. Hayes
Who won the presidential election against Samuel J. Tilden, becoming the 19th president of the US