History of aspirin other studies from the 1960s to the 1980s established aspirin's efficacy as an anti-clotting agent that reduces the risk of clotting diseases. Aspirin sales revived considerably in the last decades of the twentieth century, and remain strong in the twenty-first with widespread use as a preventive treatment for heart attacks and strokes. Medicines derived from willow trees and other salicylate-rich plants have been part of pharmacopoeias at least dating back to ancient Sumer. The Ebers Papyrus, an Egyptian medical text from ca. 1543 BCE, mentions use of willow and myrtle (another salicylate-rich plant) to treat fever and pain. Willow bark
Parable of the Olive Tree original tree that was transplanted into good soil grew to give a mix of good and poor fruit. The master of the vineyard instructed his servant to cut off the branches of this tree that gave poor fruit, and burn them. However, the servant suggested to that master that with further care this tree too might bring forth good fruit. And so the master and his servant worked diligently at nourishing all the trees. After a long time the master and servant returned to the vineyard, and found that all trees, both the original and the transplants, had failed, and