Certified Nurses Day, also known as National Certified Nurses Day, is observed in the United States every March 19. This professional observance was established to honor nurses who enhance their knowledge and skills through certification, thereby improving patient outcomes. The day was created in 2008 by the American Nurses Credentialing Center (ANCC) and the American Nurse Association (ANA) to commemorate the birthday of Dr. Margretta “Gretta” Madden Styles, a key figure in establishing national standards for nursing certification. Certified nurses often receive additional compensation for their specialized skills, which can be obtained in over 200 nursing specialties. The celebration involves recognizing the contributions of certified nurses, with employers, educational institutions, and certification boards participating in the observance. Participants are encouraged to acknowledge certified nurses in their lives and promote the day on social media using the hashtag #CertifiedNursesDay.