On December 9, 1717, German art historian and archaeologist Johann Joachim Winckelmann was born. Winckelmann was one of the founders of scientific archaeology and first applied the categories of style on a large, systematic basis to the history of art.
On April 18, 1506, the foundation stone of the new St. Peter's Basilica in Rome took place under the guidance of Pope Julius II. A succession of popes and architects followed in the next 120 years, their combined efforts resulting in the present building. Today, St. Peter's is the most renowned work of Renaissance architecture and remains one of the largest churches in the world.