Throughout history, the suppression of transformative knowledge has played a pivotal role in shaping our world. Rulers, religious leaders, and organizations have often hidden or destroyed discoveries that threatened their dominance or the established order. Sometimes, these secrets were hidden out of fear of upheaval; in other cases, they were concealed to maintain economic, political, or social control. What truths have we missed because of these actions? Let’s delve into 15 remarkable discoveries that were intentionally buried to protect power.