What would a historian need to examine most closely for bias?

What is another name for the spanish navy in 1588? a) spanish royal fleet b) spanish armada c) spanish yacht crew d) spanish tall ships

What is douglass's purpose in the speech "the hypocrisy of american slavery, july 4, 1852" ? how does douglass reveal his purpose to the reader?

Public opinion is of most value when the people who hold an opinion that opinion.