Today marks the 90th birthday of Queen Elizabeth II, the longest serving British monarch.
Queen Elizabeth II 90th birthday marks a milestone that has thrown thousands of well-wishers to the streets near Windsor Castle in her honor.
Also lots of people took to Twitter to pay tribute to the Queen.
Elizabeth II (Elizabeth Alexandra Mary; born 21 April 1926) is, and has been since her accession in 1952, Queen of the United Kingdom, Canada, Australia, and New Zealand, and Head of the Commonwealth. She is also Queen of 12 countries that have become independent since her accession: Jamaica, Barbados, the Bahamas, Grenada, Papua New Guinea, Solomon Islands, Tuvalu, Saint Lucia, Saint Vincent and the Grenadines, Belize, Antigua and Barbuda, and Saint Kitts and Nevis.
Elizabeth was born in London to the Duke and Duchess of York, later King George VI and Queen Elizabeth, and was the elder of their two daughters.