Besides the science of optics, astronomy, the modern calendar, astrophysics, the Big Bang theory, the first scientific maps, stratigraphy, the background that led to Darwin's discoveries, study of genetics, theology, great philosophers, the principle that human life has intrinsic value, have free will and the principle of non-contradiction, creating the university system, founding the Universities of Bologna, Paris, Oxford, Salerno, Vicenza, Cambridge, Salamanca, Padua, Naples and Vercelli, amongst many others, developing the grammar school system, being the first to apply the use of the printing press, educating 50 million people around the world in Catholic schools today, shaping the greatest art and architecture such as the basillicas of Ancient Rome, the Sistine Chapel, inventing realism in painting which inspired three dimensional art and drama, one-point linear perspective, and funding the great Renaissance painters such as da Vinci, Raphael, Caravaggio, Michelangelo and Bernini, and the architectural genres of Byzantine, Romanesque, Gothic and Baroque. producing the first systematic bodies of laws that shaped the legal system of Europe, founding the first law schools and the legal profession and the concept of corporate personality, developing legal principles such as "good faith", reciprocity of rights, equality before the law, international law, trial by jury, habeas corpus, and the obligation to prove an offence beyond a reasonable doubt, spreading the Latin alphabet and literacy throughout the world, great work of literature such as the Divine Comedy, the Song of My Lord and the Song of Roland, founding crystallography, the first schools for the blind and the braille system, the western tradition of music, musical notation, inventing the hymn, the oratorio, the opera, the symphony and the string quartet, being the patrons for the works of Haydn, Monteverdi, Vivaldi, Mozart, Beethoven and Mahler, and pioneering women's right with women like St. Hilda, Blessed Hildegard von Bingen, Empress Matilda, Eleanor of Aquitaine, Mary Tudor, Trotula of Salerno, Dorotea Bucca, Elena Lucrezia Piscopia and Maria Agnesi...
Besides all that, WHAT have the Roman Catholics ever done for us?!