Even the Queen's doing this now

• Queen Elizabeth II posts her first tweet as she opens a new museum gallery


• Her message is posted on the official British monarchy Twitter feed


• A second tweet confirms that the "last tweet was sent personally by The Queen"

London (CNN) -- Britain's Queen Elizabeth II dipped a toe into 21st-century communications Friday when she posted her first tweet.

Signing herself Elizabeth R., for regina or queen, she welcomed visitors to a new Information Age gallery focused on the evolution of modern communications at the Science Museum in London.

It is a pleasure to open the Information Age exhibition today at the @ScienceMuseum and I hope people will enjoy visiting. Elizabeth R.

— BritishMonarchy (@BritishMonarchy) October 24, 2014

The inaugural tweet was posted to the official British monarchy Twitter feed, which has more than 700,000 followers.

And in case anyone had any doubts that the Queen's own hand was behind it, another tweet quickly followed vouching for its authenticity.

The last tweet was sent personally by The Queen from her official Twitter account @BritishMonarchy #TheQueenTweets

— BritishMonarchy (@BritishMonarchy) October 24, 2014

The 88-year-old monarch has spent more than 60 years on the throne, during which time she has taken other steps to embrace new technology.

Britain's Queen Elizabeth II has joined Twitter, and she started with a message about London's Science Museum. Here's a look at some other notable first tweets.

Britain's Queen Elizabeth II has joined Twitter, and she started with a message about London's Science Museum. Here's a look at some other notable first tweets.

Famous first tweets

In 1953, at her own request, she became the first British monarch to have her coronation broadcast live on television.

That act prompted a boom in TV sales, with an extra half a million sets sold in the weeks running up to the coronation, according to the British monarchy Twitter feed.

CNN's Lucy Pawle contributed to this report.