Remember “Snoopy’s Christmas”?

http://en.wikipedia.org/wiki/Snoopy’s_Christmas

http://www.lyricsmode.com/lyrics/c/christmas_songs/snoopys_christmas.html

https://www.youtube.com/watch?v=MSFQzyNJzj0

In the terms of the number of years, the time passed between 1967 and today is about the same as the number of years between World War I and 1967.