April 21, 2016 8:00 AM EDT

Back in September of 2015, when Queen Elizabeth II became the longest-ruling monarch in British history, we took a look at how her reign—at approximately 63 years and 7 months—stacked up against those who’d come before.

Now, in honor of her 90th birthday on Thursday, we did the math to add seven more months and 12 days to that impressive stretch. Here’s our updated look at the longest reigns in British history, along with some fun facts about Her Majesty, as the U.K. celebrates her birthday.

Heather Jones for TIME

Write to Lily Rothman at lily.rothman@time.com.

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