Replying to Holocaust

I know a lot of Jewish people will get mad at me but i dont mean to be offensive to anybody. That being said, i ask was there a holocaust? My teacher told my class of a German student teacher who told her class that there was not holocaust and that it was all American Propaganda. A week later she was gone... Are teachers required to teach students about the holocaust? How do we know there really was one? Yea some people might say its hard to have that many bodies but how do we know there were really that many? Maybe its just a # the government provided. As soon as i see all of the millions of bodies, i might believe it. Once again, this is not meant to offend anybody Jewish
trust me, the '' things aren't actually there

'Know this now, you are only killing a man'-Che Guevaras last words