Place the following in the correct order. 1. night of the long knives 2.wannsee conference 3.auschwitz opens 4.kristallnacht

1. Night of the Long Knives - happened in 1934, it was a series of politically motivated murders.

2.Wannsee Conference - happened in 1942, concerned the final solution

3.Auschwitz opens - in 1940

4.Kristallnacht  - happened in 1933, it was a night of Anti-semitic attacks and arrests

So the order is 4, 1, 3, 2