J.K. Rowling’s first Harry Potter Movie, “The Philosopher’s Stone,” premiered in Leicester Square, London, UK.
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Physicists in New Zealand observed a record-breaking solar flair.
The Paris Climate Change Agreement went into force.
Barack Obama became the first African American to win a United States Presidential Election.
The first wagon train arrived in California after having left Independence, Missouri, in May 1841.
Around 1,000 Soviet tanks entered Budapest, the capital of Hungary, after bombing half the city in an attempt to take over.
