Sometimes, a secondary source (a source that analyzes primary sources to understand why a phenomenon happened, such as scholarly articles published in academic journals, research books, biographies, textbooks, etc.) can be treated as a primary source depending on the context of your research. For example, if you are doing a research study about how biology teaching has changed through time, then biology textbooks are considered a primary source.
Caption: One of 634 drawings from the collection, "They still draw pictures", which is part of the Southworth Spanish Civil War Collection housed in the Mandeville Special Collections Library at UC San Diego.
Explore these resources following the links below:
Note: As any primary source used for historical research, be aware of the strengths (first witness accounts) and weakness (bias, forgetfulness, sensationalism) of this type of source.
Digitized collection of about 4000 pamphlets held at the Oliveira Lima Library at the Catholic University of America, published chiefly in the 19th and early 20th centuries. Topics include Brazilian and Portuguese history, literature, and politics, but nearly all topics and time periods beginning with the colonial era are represented.
Contains the most important dramatic works of sixteenth and seventeenth century Spain. Each play is reproduced in full, including the "Preliminaries" which contain "aprobaciones", "censuras", "privilegios" etc. Texts are in Spanish and are fully searchable.