The Queen celebrates her 90th birthday today - a milestone that will be marked both privately with family and publicly by the nation. Tributes will be paid to the monarch - born on April 21 1926 - who has become the country's first nonagenarian sovereign. Share Go To Well-wishers are expected to sing Happy Birthday to the Queen when she goes on a walkabout close to her Windsor Castle home later to acknowledge the good wishes of the public. And in the evening the night sky over her Berkshire home will be lit up by a beacon, started by the Queen, the first in a chain of more than 1,000 that will spread across the country and the globe. The Prince of Wales is understood to be making a speech in...
