Simon Bolivar was a revolutionary, born in Venezuela, who liberated 6 countries in northern South America from Spanish forces sent by the then king of Spain, Bolivar traveled to Europe to ask Spain to withdraw its military forces from America, stop repressing the people and taking advantage of their wealth, but they ignored him, then he returned to South America from where he undertook a battle to free the countries, achieving the objetives and winning almost all of the fights.
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The Prussian state power dominated the nation building process in Germany. The key role was played by Otto von Bismarck, its chief minister with the help of Prussian army.
There were three wars over 7 years with Denmark, Austria Hungary and France between 1864 and 1871 which ended in Prussian victory.
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Ummm...I think that's the oath that states the obligations and proper conduct of doctors, formerly taken by those beginning medical practice. Parts of the oath are still used in most medical schools.
B African American lacked opportunity in norther states