When studying history, asking questions and checking other sources will improve one's perspective. what other awareness is necessary? to realize all writers and reporters have some bias of culture, geography, economics, or politics. to understand all perspectives are always correct. to acknowledge primary documents are without bias. to understand the longer a document is, the more accurate it is.

the effect of the ming leaders banning ships with more than two masts was that there was no further construction of ships masts, because there was a surplus. ming emperors disallowed foreign exploration

martin luther king (1929-1968) was an activist for the african american rights, mr. king has a profile of a kind leader that built a tenacity, respect and full of hope future. he was an activist through civil disobedience and no violence pressure mechanisms. he tried to build a more egalitarian and fair society. his efforts carried a reivindication message of the civilian rights to every west corners. for that reason, he won the nobel prize in 1964.