HEALTH: The Antibiotic Resistance Crisis and Its Historical Roots Antibiotic resistance causes approximately 1.3 million deaths annually and is projected to surpass cancer as a leading cause of mortality by 2050 if current trends continue. The problem accelerated dramatically after penicillin's discovery in 1928, when antibiotics became widely prescribed—often unnecessarily—creating selective pressure for resistant bacteria to evolve. In the U.S. alone, roughly 30% of prescribed antibiotics are unnecessary, yet resistance genes from overuse in agriculture and human medicine now spread globally through interconnected food and water systems. This matters because every major medical advancement—from routine surgery to chemotherapy to organ transplants—depends on functional antibiotics; without them, we face a regression to pre-1940s medicine where minor infections become lethal.