British Prime Minister Boris Johnson names the Queen Elizabeth the Great

Elizabeth, 96, marked seven decades as queen in February, and nationwide events to commemorate her Platinum Jubilee, including a thanksgiving service and a music concert outside Buckingham Palace, will take place from June 2 to 5.

In parliament, Johnson led the acclaim to Britain’s longest-reigning monarch in a “humble address”.

“In our history, no monarch has ever served this country so long as this one … but far more importantly, no monarch has ever served it so well,” he said.

In a “humble address” to the Queen, Mr Johnson expressed hope the nation would come together to reciprocate the “love, devotion and leadership” she had shown it. He added: “No monarch, by her efforts, dedication and achievement, better deserves the attribute of greatness. For me, she is already Elizabeth the Great.”

Mr Johnson acknowledged the joyous milestone would be “tinged with sadness” without her beloved husband Prince Philip by her side.

He added: “I hope we can further comfort and reassure her. And with every bonfire, concert, street party and aerobatic display, reciprocate the love, devotion and leadership she has shown the country over seven decades.”

Mr Johnson said Prime Ministers are not supposed to relay conversations with the Queen.

But he added: “Her knowledge of politics and world affairs is profound. There have been times I’ve been scrabbling to remember a date or the name of some African capital and she’s got there first.

“And when it comes to anything equestrian, I’m simply nowhere.”

He said in the 25,677 days she had been queen, Elizabeth had carried out more than 21,000 official engagements in more than 100 countries, and given her assent to some 4,000 pieces of legislation under 14 prime ministers.

The queen was also the holder of at least seven world records, including the most summer Olympiads opened by one person, he added.

Keir Starmer, leader of the opposition Labour Party, said it was impossible to imagine Britain without her, calling her “the most famous face on the planet”. He added Elizabeth had been “the perfect monarch for the people and the times that she led”.

Elizabeth became the queen of United Kingdom and more than a dozen other realms including Canada, Australia and New Zealand on the death of her father King George VI on Feb. 6, 1952, while she was in Kenya on an international tour.

The four days of celebrations begin next Thursday with the traditional ‘Trooping the Colour’ military parade in central London.

They will also include a service at St Paul’s Cathedral on Friday, a concert outside Buckingham Palace the next day and a pageant through the British capital on Sunday