The Girl Guides' Association was formed in 1910, a year after a group of Girl Scouts turned up at the first Boy Scouts' public meeting in Crystal Palace.
Agnes Baden-Powell, the sister of Robert Baden-Powell, who formed the Boy Scout Movement, became president of the Association.
In 1914, a junior section of Guides was formed for eight to 10-year-olds. They called themselves Rosebuds and were later renamed Brownies.
In 1918, Baden-Powell's wife, Olave, was appointed Chief Guide.
In 1937, the Queen became a Guide, her sister Princess Margaret enrolled as a Brownie and their mum became the Patron of the Girl Guides.
In 1946, the Queen's Guide Award, the highest award a Guide can get, was introduced.
In 1952, the Queen became joint Patron of the Association alongside her mum.
In 1965, the Queen's sister, Princess Margaret, who was once a Brownie herself, became president.
In 1987, Rainbow Guides were formed.
In 1994, the Girl Guide Association was renamed The Guide Association.
In 2002, the Guide Association was renamed Girlguiding UK. The new name was unveiled by former Steps singer Lisa Scott-Lee.
Also in 2002, guides all over the UK joined their mums at work to mark Take Our Daughters to Work Day.
In 2003 - Prince Edward
's wife Sophie, the Countess of Wessex, became President of Girlguiding UK.