The U.K.'s Queen Elizabeth II sent her first personal tweet Friday, signing her inaugural social message "Elizabeth R."
The monarch posted the words to mark the opening of a new exhibition at London's Science Museum. It was followed minutes later by a picture of the event and the hashtag #theQueenTweets.
"It is a pleasure to open the Information Age exhibition today at the @sciencemuseum and I hope people will enjoy visiting. Elizabeth R." the message said, the R standing for "Regina," the Latin for queen. "The last tweet was sent personally by The Queen from her official Twitter account @BritishMonarchy #TheQueenTweets," the next message said, followed by a photo.
Her grandson Prince Harry sent his first official tweet in May, but admitted during the summer that he no longer has a personal account.
The Duke of York is the most prolific on Twitter.
Fun fact: The Queen was the first British monarch to send an email, via an early from of the technology known as ARPANET while on a visit to a military base in 1976, the @BritishMonarchy account tweeted earlier Friday.