National Multiple Births Awareness Day (NMBAD) is observed in Canada every May 28 to bring together the Canadian multiple birth community and address the challenges faced by parents and multiples. The day was established in 2005 by Multiple Births Canada, a charity dedicated to the well-being of multiple birth families. The date commemorates the birthday of the Dionne quintuplets, who were the first known quintuplets to survive to adulthood, born on May 28, 1934, near Corbeil, Ontario. The observance highlights the unique difficulties faced by families with multiples, including bonding challenges, isolation, and mental health struggles. It emphasizes the importance of support networks and resources for these families.