It is one of the worst moments in history,Â which still horrifies to this day.
During Hitler’s brutal reign of Nazi Germany,Â more than six million Jews were killed.
But now new research has discovered that theÂ Holocaust may well be even worse than previously thought.
Researchers at the United StatesÂ HolocaustÂ Memorial Museum have been documenting all of the NaziÂ concentration camps,Â ghettos, slave labour sites and killing factoriesÂ which had been set up acrossÂ Europe.
When they first started the project, the teamÂ expected to find about 7,000 camps and ghettos.
Speaking to the New York Times, HartmutÂ Berghoff, director of the institute,Â said: ‘The numbers are so much higher thanÂ what we originally thought.
‘We knew before how horrible life in theÂ camps and ghettos was but the numbers are unbelievable.’
The figure includes 30,000Â slave labour camps and 980 concentrationÂ camps. As well as ‘killing centres’ theyÂ included forced labour camps where prisoners made supplies for the war.
They also includedÂ sites called ‘care’Â centres in which pregnant women were made to haveÂ abortions or their babiesÂ murdered shortly after birth.
The researchers have created a series of mapsÂ which present a grim view of life in wartime Europe.They show just howÂ widespread the camps were, although most were centred in GermanyÂ andÂ Poland.
Previous data hasÂ shown just the existenceÂ of individual camps on a fragmented basis.
But using data from 400 contributors , theyÂ have now documented the large scale operation for the first time.
They have discovered exactly where they areÂ located and how they were run.
It is now believed that the research couldÂ help survivors with their claims over unpaid insurance policies. Researchers sayÂ the project has helped change the understanding about Holocaust experts over howÂ the camps were run.
When the project first started, theÂ researchers expected to find about 7,000 Nazi camps and ghettos. But as theÂ project has gone on, the numbers constantly increased to the current figure ofÂ 42,500