My name is Sharon Meyer, formally Date. I was told by someone that has done a family tree that the Dates originated in Ireland as McDaith and shortened the name to Date when they moved to England. When the family migrated to the states, some of them stayed here and some went on to Japan, which is why some Japanese have the name Date. He claims that if your last name is date and you live in the US, you are all related. I don't know how much of this is true.