Go to CAB Abstracts' Advanced Search screen.
Limit your search to the English language. (There are many references to non-English articles in CAB, particularly historical articles).
Online 1, change the drop down box from All Fields to Descriptor. Then enter the word history.
Online 2, enter search term(s) that describe you a disease, disorder, historical person or event (linked by AND or OR).
Optional: You may want to add a third line to include species terms, e.g. horses, dogs, cats, sheep.