Neon lighting was first demonstrated at the Paris Motor Show by Georges Claude.
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The 7-year old Ryan of 'Ryan Toysreview' was announced as the year's highest-paid YouTube star earning $22 million.
The first pizza party was held in space.
Spotify announced Drake as the most-streamed star of the 2010s with 28 billion streams, and Ed Sheeran's 'Shape Of You' as the most-streamed track with 2.4 billion streams.
The 70th anniversary of NATO was marked by a gathering in London of world leaders, followed by a reception by Elizabeth II at Buckingham Palace.
The Grand Union Flag flew for the first time with the commissioning of the USS Alfred.
