The Advanced Trauma Life Support (ATLS) system was created in the United States in 1976 after an orthopedic surgeon crashed his plane and found the emergency care for his critically injured children to be inadequate. ATLS provides a standardized approach to assessing and treating trauma patients, including maintaining the airway, breathing, and circulation during the primary survey to address life-threatening issues first before conducting a full secondary survey. Over 50 countries now provide the ATLS course to physicians to improve trauma care worldwide.