How was the Holocaust remembered across Europe after the Second World War?’

I have to write four short summaries on how each source(attached below) will be useful for answering the essay question ‘ How was the Holocaust remembered across Europe after the Second World War?’ . 100 words written
on each source.
The second task is writing an essay plan of 100 words for that question. I have no preferences for this :))
Whatever you think should be covered for that question