Mouse over the asterisks to see the name at the bottom of the window; click on them to go to the Wikipedia page.
Note: I hand-selected these in a hurry, from scanning Wikipedia's lists of philosophers from the 15th to 20th centuries. I was slow to include mathematicians, linguists, physicists, political philosophers, etc. (though some are in there).
See also So who *is* the most important philosopher of the past 200 years? on Leiter Reports: A Philosophy Blog