You had to wait till the Allies arrived.
The Holocaust took place from about 1940 to 1945, the international conflict was the Second World War.
The Holocaust was the Nazi regime's shameful 'secret', and photography was forbidden in the camps and ghettos. However, some SS men did take a few photos, and there were a few carefully chosen 'official' photos of what the Nazis called 'Resettlement in Eastern Europe'. In the Lodz Ghetto, the head of the Jewish Council had a kind of photographic record kept, but this was most unusual. Many of the negatives have survived.
Eisenhower. Not that it made a difference, they were already taking pictures.
This is no doubt specific to an audience, you should ask your audience in what form they would like it to take.
Any where from 2 hours to all day.
4 years.
You had to wait till the Allies arrived.
5hours
People didn't want to believe it.
Yes, there are several all around the world. In the United States there are two major museums. One is located in NYC and is the Holocaust museum. Items are shown from the camps and the people who perished there. It is worth a visit. On the west coast there is the Simon Wiesenthal museum in LA. There are two sections to the museum. One displays the modern hate groups and what they are doing today. The second section makes you part of the story. You walk through a village that the German's are rounding up to take to the camps, and it takes you through the process of what happened to the people. It is very emtional to go through this and realize what it really was like. You get a small card with a picture of a person who died in the Holocaust. Again, it is worth doing.
it did not take long, the news got out whilst it was still occuring. The point was that people did not believe it.
anything from two hours to ten days.
Quite a long time, the decision was made after they actually started killing.
Hermitage
15 seconds
Take them to your local museum or contact the Holocaust museum in either NYC or D.C. My personal opinion is you shouldn't make any money off these items, but the value lies in teaching others about what happened and by donating them to a museum you could do just that. Contact a local synagogue as well for how to donate them.