1 Nearly one in five Americans (19%) will be an immigrant in 2050, compared with one in eight (12%) in 2005. 2  By 2025, the immigrant, or foreign-born, share of the population will surpass the peak during the last great wave of immigration a century ago.
According to Rowling's agent, Christopher Little, the seven Harry Potter books have so far been translated into 67 languages, amassing the 400m figure since the publication of the first book in the series, Harry Potter and the Philosopher's Stone, in 1997.
The seventh and final novel, Harry Potter and the Deathly Hallows, was published on 21 July 2007. The book sold 11 million copies in the first 24 hours of release, breaking down to 2.7 million copies in the UK and 8.3 million in the US.