Swedish music streaming service Spotify was launched by Daniel Ek and Martin Lorentzon.
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Willem II became King of the Netherlands.
A Spanish nurse became the first person to contract Ebola outside of West Africa.
The Netherlands' flag carrier airline was founded under the name KLM Royal Dutch Airlines.
The Soviet spacecraft Luna 3 allowed the world to look at the far side of the moon for the first time.
The first-ever infrared photo was taken in Rochester, New York.