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The Queen at 91: The most important photo from every single year of her remarkable life

Business Insider UK Logo By Charles Clark of Business Insider UK | Slide 1 of 93: <p>On Friday, Queen Elizabeth II will celebrate her 91st birthday.</p><p> In her 91 years, the record-breaking monarch has pretty much seen it all - she has undertaken more than 260 official overseas visits and has lived through <a href="http://uk.businessinsider.com/queen-elizabeth-ii-reign-churchill-stalin-hitler-2015-9?utm_source=msn.com&utm_medium=referral&utm_content=msn-slideshow&utm_campaign=bodyurl"> 20 British Prime Ministers and 15 US presidents</a>.</p><p> This year's celebrations are expected to be a low-key affair including the traditional gun salute at Tower Bridge and Hyde Park. </p><p> Last year's celebrations were a much more elaborate, with 1,000 beacons being lit and street parties being held across the country to mark her 90th. </p><p> In celebration of her 91st birthday, we've found a photo from every single year of her remarkable life. </p>

On Friday, Queen Elizabeth II will celebrate her 91st birthday.

In her 91 years, the record-breaking monarch has pretty much seen it all - she has undertaken more than 260 official overseas visits and has lived through 20 British Prime Ministers and 15 US presidents.

This year's celebrations are expected to be a low-key affair including the traditional gun salute at Tower Bridge and Hyde Park.

Last year's celebrations were a much more elaborate, with 1,000 beacons being lit and street parties being held across the country to mark her 90th.

In celebration of her 91st birthday, we've found a photo from every single year of her remarkable life.

© REUTERS/Fiona Hanson/Pool
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