Primary sources may be objects (artifacts, tools, weapons, inventions, fashions, uniforms), images (photographs, film, video), audio (oral histories, music, interviews, speeches,) or documents (books, letters, journals, diaries).
A primary source gives you direct access to the subject of your research. Secondary sources provide second-hand information and commentary from other researchers. Examples include journal articles, reviews, and academic books. A secondary source describes, interprets, or synthesizes primary sources.
Through the voyages of Christopher Columbus, further conquistadors such as Hernan Cortes and Francisco Pizarro were able to understand the landscapes of the geographic regions in the Caribbean and South America, which allowed them to more effectively colonize the regions.
What war are we talking about? Different wars were fought and opposed for different reasons. Some generic reasons include the person not supporting the country's motives for the war, believing their county was not in the right, or a whole slew of reasons individual to each war.<span />