In light of the rapid approach of Valentine's Day, I find myself wondering about the modern conceptual image of the heart. Anyone who has seen an anatomically correct human heart would know that the two bear little to no resemblance. At what point in history did this symbol begin to appear? Which cultures were first to commonly represent the heart in this way? It seems very odd to me how little the image has in common with an actual heart; how did the symbol's current form come to be?