Henry McKean has met some of Ireland's nonagenarians
Events are being held in Britain to mark the 90th birthday of Queen Elizabeth II.
She has met members of the public gathered outside Windsor Castle, waving flags and singing to mark her birthday.
She has accepted flowers, cards and presents from the hundreds of people wanting to wish her well on the milestone.
Her arrival was marked by a rendition of 'Happy Birthday' by the Band of the Coldstream Guards.
She was accompanied by her husband of more than 68 years, Prince Philip - who himself turns 95 in June - as she opened a walkway created in her honour.
Queen Elizabeth has survived the Blitz, she met Winston Churchill on regular basis in World War II, survived assassination attempts, 12 British Prime Ministers, 15 US Presidents including Nixon, JFK and Reagan.
Newstalk.com's Henry McKean went to meet some of Ireland's nonagenarians, and asked them about their lives.