Which source is secondary source used to write about the structure of the early United states government?--A : The letter written by the first united states president--B : The painting of the first continental congress--D : A memorandum from congressional meeting--D : An old text book from a history class

christopher columbus (1492–1504)

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.