:00:00. > :00:00.Martin here with all of Wednesday's best stories.
:00:00. > :00:13.History in America where, for the first time,
:00:14. > :00:24.And get ready to see a seriously big worm...
:00:25. > :00:28.First to America, where history has been made overnight.
:00:29. > :00:31.For the first time, a woman will have a real chance of becoming
:00:32. > :00:36.It's because Hillary Clinton has won the race to be her party's
:00:37. > :00:42.Now it's a fight between her and Donald Trump in November to see
:00:43. > :00:48.This is what Hillary Clinton had to say....
:00:49. > :00:58.Thanks to you, we have reached a milestone. CHEERING
:00:59. > :01:10.The first time, in our nation 's history, a woman will be a major
:01:11. > :01:16.party's nominee. Tonight's victory is not about one person, it belongs
:01:17. > :01:19.to a generation of women and men who struggled and sacrificed, and made
:01:20. > :01:22.this moment possible. Next to the school where two wheels
:01:23. > :01:25.are better than a car... Ricky's been to a school
:01:26. > :01:27.in Yorkshire where children have won an award for the amount of time
:01:28. > :01:42.they spend on their bikes. Helmet on, school awaits! There is
:01:43. > :01:47.nothing like a good bike ride. No matter the weather, even when it is
:01:48. > :01:57.raining, these guys get on their bikes and scooters, and off they go!
:01:58. > :02:04.These guys are so good at it, they've even won an award. For five
:02:05. > :02:11.whole days, every single kid at this small school in Yorkshire 's used
:02:12. > :02:16.their bike or scooter to get to school. It is important as you are
:02:17. > :02:24.stopping pollution, it is like changing the world! We can go
:02:25. > :02:32.anywhere you want, really. I love cycling, because it is nice and
:02:33. > :02:34.makes the world better and it relaxes me when I go for a bike
:02:35. > :02:38.ride. But there is still a problem,
:02:39. > :02:43.cycling charities say that a lot of you are not able to ride to school.
:02:44. > :02:48.When we do surveys with young people we find that about a third of them
:02:49. > :02:52.want to cycle to school, but just one in 50 children cycle to school
:02:53. > :02:56.in this country. There is a big difference, but if you go to
:02:57. > :03:00.countries like the Netherlands or Denmark, something like a third of
:03:01. > :03:06.children cycle to school. You see more on a bike than in a car, and
:03:07. > :03:10.you get more exercise than in a car. Busy roads can put a lot of you off
:03:11. > :03:14.getting on your bike. Charities say that riding in groups with an adult
:03:15. > :03:16.can make it easier and safer for young people.
:03:17. > :03:19.Next - some of you might have spotted the odd earth worm whilst
:03:20. > :03:24.But I bet you haven't seen one quite as big as this fella...
:03:25. > :03:26.This giant earth worm was spotted during a rainstorm
:03:27. > :03:39.Worms of this size can easily reach five to seven feet.
:03:40. > :03:42.Good news for Harry Potter fans - last night was the first preview
:03:43. > :03:45.of a play that tells the story of everyone's favourite wizards
:03:46. > :03:49.Harry Potter and the Cursed Child is already set to break records,
:03:50. > :03:51.but just how successful is the Harry Potter empire?
:03:52. > :03:57.Harry Potter and the philosopher's stone was first published in 1997.
:03:58. > :04:01.You're a wizard, Harry! The books were so popular that the series was
:04:02. > :04:08.made into a film and released in 2001. Author JK Rowling became the
:04:09. > :04:13.first person to own $1 billion from writing books. That is almost ?700
:04:14. > :04:18.million. These books have been translated into more than 70
:04:19. > :04:21.languages with over 450 million copies sold, giving it the title of
:04:22. > :04:30.the bestselling book series in history. In total, the fields have
:04:31. > :04:38.and over $7 billion, over ?5 billion. But the newest instalment
:04:39. > :04:43.opening as a theatre show in London is sure to be a record-breaker...
:04:44. > :04:51.And head to Newsround online And to find out more about
:04:52. > :04:55.including some of the dodgiest haircuts in football, check those
:04:56. > :05:00.bad boys out, they're pretty special!