Founded in 1789 by John Carroll, Georgetown University is the nation’s oldest Catholic institution of higher education. Its campus includes Healy Hall, a nationally registered historic building named in honor of former university president Patrick Healy who greatly expanded the school after the Civil War. Research suggests that slave-born Healy was of mixed Irish and African-American ancestry. The school enrolls over 17,000 undergraduate and graduate students from more than 130 countries. Georgetown is the alma mater of numerous presidents, Supreme Court Justices and other leaders as well as royalty, aristocrats, dignitaries and diplomats from foreign nations.