Willem II became King of the Netherlands.
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The first-ever infrared photo was taken in Rochester, New York.
A Spanish nurse became the first person to contract Ebola outside of West Africa.
British Newspaper 'The Independent' was first published.
The Sonderkommandos, prisoners who took care of the bodies at the Auschwitz-Birkenau Concentration Camp, protested their pending mass murder.
The Soviet spacecraft Luna 3 allowed the world to look at the far side of the moon for the first time.
