The Invasion of Normandy was the invasion by and establishment of Western Allied forces in Normandy, during Operation Overlord in 1944 during World War II; the largest amphibious invasion to ever take place. D-Day, the day of the initial assaults, was Tuesday 6 June 1944.
The child may receive Social Security, but at 18, the benefits usually end. If someone dies after a lifetime of paying into Social Security, that doesn't mean her taxes go to waste. Her family, including children, a surviving spouse and dependent parents, can receive benefits based on the deceased's earnings.
A spouse (who is living in the same household) can receive a one-time lump sum benefit of $255. If there is no spouse, a dependent child generally age 18 or under (see exceptions to the age 18 rule on the minor child section of Social Security's website), is then eligible for a one-time lump sum death benefit.