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A hall has been filled with 120,000 birthday cards to help him celebrate this milestone birthday, showing just how popular he's become.
It all started with the former war veteran walking 100 lengths of his garden to raise funds for NHS Charities Together, because he wanted to give something back - and he's certainly done that.
Donations flooded in as the new centenarian captured hearts across the UK. Around 1.4 million supporters have chipped in since he set himself the challenge.
100 years young today :raised_hands:
Looking forward to a day of celebration with the family.
Today will be a good day!
- Captain Tom Moore (@captaintommoore) April 30, 2020
In a birthday interview with the BBC, Captain Moore said: "It hardly feels any different to yesterday, I don't know what you're meant to feel like when you get to be 100. I've never been 100 before."
He continued: "I really can't tell you what difference it is from yesterday to today or maybe tomorrow. But I must say I'm absolutely delighted with all the people like you, you've come to wish me a many happy birthday.
"It really is absolutely awesome the amount of people who've been so kind to make those remarks. Thank you all very much."
Alongside his incredible fundraising efforts, Captain Moore has also hit number one in the official UK charts - making him the oldest artist ever to do so - and he's been given a very well deserved Pride of Britain Award.
Earlier today the RAF marked his special birthday with a Battle of Britain Memorial Flight flypast of a Spitfire and a Hurricane.
He has also been made an Honorary Colonel of the Army Foundation College, Harrogate, in recognition of all he's done.
General Sir Mark Carleton-Smith, Chief of the General Staff (CGS) made the appointment, which has been approved by The Queen.
He said: "On behalf of the Army, I'd like to wish Captain Tom Moore a very happy 100th birthday and congratulate him on his heroic achievement in raising over £29m for the NHS.
"His mature wisdom, no-nonsense attitude and humour in adversity make him an inspirational role model to generations young and old, so I am delighted that he has accepted the Honorary Colonelcy of the Army Foundation College in Harrogate, where our 16- and 17-year-olds are trained and educated to be the future leaders of the Army.
"Colonel Tom, congratulations on your richly deserved promotion which is applauded across all ranks of the British Army, many happy returns!"
But, hey, why stop there? If you want to donate to the JustGiving page, click here.
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