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
Answer:
The Battle of Fort Sumter in 1861
Explanation:
In most history books, you will find that The Battle of Fort Sumter is considered to be what started the American Civil War.