A 1,000 year old treatment for eye infections, recreated from a recipe recorded in the 9th Century, killed up to 90% of MRSA bacteria, suggesting a new path of research against antibiotic-resistant strains of bacteria. The treatment is made up of onion, garlic, wine, and cow bile, and was recorded in Bald’s Leechbook, an early medical textbook that has been preserved by The British Library.