Often, the best work arises from close engagement with a primary source. As you read, you'll think of questions or begin to shape an argument. The hard part is to find a primary source that addresses the broad general area of interest. Here are some strategies for finding primary sources:
PRINTED VOLUMES
Many primary source collections have been edited, printed and are housed in the library. Use the catalog to search by your topic and add the words "sources" or "correspondence."
MANUSCRIPTS AND SPECIAL COLLECTIONS
Princeton University libraries house many collections of primary sources, both in Firestone Library and at Mudd Manuscript Library. Search the collections here.
National Archives of the United Kingdom -- many papers are digitized and available for free download
We invite you to browse through the databases related to modern European history -- there is likely one that has digitized collections related to your topic.
Consists of major collections from the British Library which span over 300 years of newspaper publishing in the U.K.—17th and 18th Century Burney Collection Newspapers and 19th Century Newspapers provides a representative selection of papers from 17th-19th century Britain and includes national, regional and local newspapers from England, Scotland, Ireland & Wales. (1732-1950)
Full text searchable digital edition of the London Times. Also, see the Sunday Times Digital Archive (1822-2016).
For the period after the coverage in the Gale Historical Archive, use Nexis Uni. 1896-2016
Full text searchable digital edition of the Illustrated London News.
1903-2001. For 1993+ see the Catalog.
Periodicals Index Online
Periodicals Index Online is an index to a very substantial collection of periodicals in the humanities and social sciences. Either through PIO, or separately, the reader can also access two full-text collections, British Periodicals and Periodicals Archive Online, which provide searchable full-text and page images of hundreds of periodicals of the 19th and early 20th centuries.
INDEXES
Readers' Guide (1890+; Select Full Text 1992+)
Indexing and abstracting of the most popular general-interest periodicals published in the United States and Canada, plus the full text of selected periodicals from the late 20th century.
PAIS: Public Affairs Information Service (1915+) Citations to articles, books, reports, and select government documents on U.S. and international public policy issue. Generally considered to be a comprehensive index to policy literature.