Historical contex of WWII and the Novel

An Artafact

in the book night is when the violin. When Juliek played it, Wiesel thought why would someone want to play a violin among the dead and the dying.
There will be more Artifacts through out the book there's one about a Jewish star that all the Jews were forced to wear in the concentration camps and everywhere else. The Jewish star in the book is very much the same as in the real world war II because jews did have to wear that star on their chest to show their race to the Germans so they know who the Jews are.