Lists 'heads of state and heads of government (and, in certain cases, de facto leaders not occupying either of those formal positions) of all countries and territories, going back to about 1700 in most cases.' Also has a chronicle of relevant events since 1996, some international organizations, and recent foreign ministers .
Has 'a list of all current rulers by country up-to-date, as well as the extensive database Biographies of Political Leaders (400 records).'
'The directory is intended to be used primarily as a reference aid and includes as many governments of the world as is considered practical.... Regimes with which the United States has no diplomatic exchanges are indicated by the initials NDE.' Updated we
