Click the Research History link.
You will see a list of all the steps you have taken with your research sessions grouped by date. You will also see exactly how long you spent researching during each session.
To indicate how
many days you would like to see on your Research History, click the Preferences link on the navigation
bar and then click Set Display Options.
In the Set Up Research History section, type a desired number. You can
save a maximum of 45 days of research steps on your Research History.