Search Each page offers a simple keyword "Search" box in the upper-right corner. 
To search for entries containing two or more words, connect the search words with AND. Example: tulsa AND riot 
To search for entries containing a multi-word phrase, enclose the search words within quotation marks. Example: "jim crow" 
To search for variations of a word, use an asterisk (*) as a "wild-card" character. Example: lynch* will find lynch, lynched, lynching, lynchings, etc. 
Please note that search results are listed in order of relevance. A breakdown of resource types is displayed above each list. 

Browse The "Browse" option, near the upper-left corner, enables you to view lists of all articles in various categories. Choosing this option allows you to see the "Filter List" (left column), which contains two basic divisions, which you can open by clicking on the little plus-signs (+):
"Eras," which contains chronological groupings, such as "Before 1400"
"Category," which contains topical groupings, such as "History -- Gender and Sexuality."