Cheered along by thousands as her great procession made its way along Pall Mall, the rare colour footage has been released in honour of the Queen's Sapphire Jubilee - marking 65 years on the throne. She does not celebrate the anniversary of the date she became queen, known as Ascension Day, as it is also the anniversary of her father's death. While a "heavy cold" sidelined her briefly at Christmas, she continues to fulfill engagements around the country, attending many more events than some of the younger royals. Royal sources have revealed that Her Majesty will therefore spend the day in "quiet reflection" at Sandringham.
She surpassed Queen Victoria as Britain's longest-serving monarch in 2015.
"She has truly been an inspiration to all of us and I am proud, on behalf of the nation, to offer our humble thanks and congratulations on celebrating this Sapphire Jubilee". But lately it's her grandchildren who are making headlines.
On what the Queen thinks of the British Royal Family's ever increasing popularity, Williams believes she is delighted.
The BBC reports the British army honored the 90-year-old queen with a 41-gun salute, while other ceremonial gun salutes took place in select United Kingdom cities.
Although a sapphire jubilee is certainly an exceptional milestone, officials did not plan any public celebrations this year.
On Feb 6, 1952, a 25-year-old Princess Elizabeth ascendedo the throne, though she was not crowned until June 2, 1953.
The Queen celebrated her 90th birthday previous year and had a busy schedule commemorating the occasion, with a walkabout, beacon lighting and a black tie dinner for family and friends in Windsor on her actual birthday.