Queen Elizabeth II Is Now UK's Longest Reigning Monarch
At the Scottish Borders, Queen Elizabeth II, the 89-year-old monarch, said the title was "not one to which I have ever aspired" reports BBC.
Yet once 17:30 BST was crossed, she had reigned for 23,226 days, 16 hours and approximately 30 minutes - surpassing the reign of her great-great-grandmother Queen Victoria, who reigned for more than 63 years and seven months.
Her service that she has given to the nation has been "truly humbling", according to UK's Prime Minister, David Cameron.
The Queen reached out to her crowds in her turquoise dress, with her black handbag by her side.
"Inevitably a long life can pass by many milestones - my own is no exception - but I thank you all and the many others at home and overseas for your touching messages of great kindness," she said.
To honour her, the Queen and Prince Philip travelled by steam train from Edinburgh to Tweedbank. At that point, she opened the £294m Scottish Borders Railway.
The Commons suspended its work for half an hour so that MPs, led by Mr Cameron, could pay tribute to her. Cameron said that she had been a "rock of stability" at a time when so much had changed, while her ruling had been the "golden thread running through three post-war generations".
He said it was "typical of the Queen's selfless sense of service" that she thought today should be a normal day.
"Over the last 63 years, Her Majesty has been a rock of stability in a world of constant change and her selfless sense of service and duty has earned admiration not only in Britain, but right across the globe," according to Prime Minister David Cameron. "It is only right that today we should celebrate her extraordinary record, as well as the grace and dignity with which she serves our country."
It is not too clear when the queen inherited the throne, after George VI died early on February 6, 1952. It is not easy to point out the exact time when the throne was passed to Queen Elizabeth II.
However, she did not expect big celebrations. "It's business as usual," a spokesman for Buckingham Palace had said earlier, according to the Wall Street Journal. "She's not celebrating at all."
This is just what her great-great-grandmother decided after she touched her personal reign record about a hundred years ago.
But next year, Queen Elizabeth will complete her 90th year, for which there is expected to be a great celebration, attended by her entire family, according to hngn.
YouTube/Euronews
