Supreme Sacrifice Day is celebrated on March 18, 2017. It honors those who have made huge sacrifices for the sake of others. That can be a certain professional group like firemen or policemen who risk their lives while helping others. Nurses or geriatric nurses sometimes also sacrifice a lot for their patients. Soldiers are also people; Supreme Sacrifice Day refers to, as they also risk their lives for the people in their country or others in need.
But sometimes it is people very close to us who have sacrificed themselves for us. Like a mother who quits her career for the sake of her children. There is no religious background of Supreme Sacrifice Day but Jesus Christ is said to be a person who sacrificed himself to death for the people down on earth.