The Heart Renaissance.

Ancient societies believed the heart was the most important organ in the body. Ancient religions held that only through the heart could one connect with God. During Europe's Middle Ages there was little to no advances regarding the heart's workings. As the Middle Ages gave way to the Renaissance, scientists and physicians began questioning long-standing theories on the heart. The first accurate descriptions of the heart and its function were written, and the first anatomically correct representations of the heart were drawn.