Google announced that it had acquired YouTube for $1.65 billion.
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The Dublin and Kingstown Railway officially opened.
Andrew Lloyd Webber's musical 'Phantom of the Opera' was premiered in London with stars Michael Crawford and Sarah Brightman.
German Chancellor Angela Merkel visited Athens and was met by 50,000 protestors.
Hoover Dam began producing electricity and transmitting it to Los Angeles, California.
A 2,000-strong student protest against police brutality broke out in Belfast, Northern Ireland.