It's okay to use Wikipedia to get your key words and dates! Just don't let your search stop here.
Make a list of all the different words you can use in your search, and add a date (or date range) to get even more targeted results:
Which search words are best from these three below:
Or consider these search terms:
It always pays to vary your search words and to keep a running list of synonyms you can use as well as what you have tried.
In Wikipedia, take note of the "see also" section as well as related links and suggested sites to visit:
Watch this video on how to search NYT's TimesMachine for more primary sources and archival items going back to 1851/
Watch this video to learn about how to search NYT's TimesMachine for primary sources and archival material going back to 1851!