Her Majesty Queen Elizabeth and Prince Philip, Duke of Edinburgh, are celebrating their 69th wedding anniversary today. The royal couple married on November 20, 1947.

At the time, then Princess Elizabeth was only 21-years-old and still learning how to become successor to the throne. Lieutenant Philip of Mountbatten, then 26, had just returned from serving in the Second World War; he was in the Royal Navy.

This year, Queen Elizabeth celebrated her 90th birthday and Prince Philip celebrated his 95th. Other milestones for the royal couple, this year, include Queen Elizabeth’s record of becoming the longest reigning sovereign and Prince Philip has become the longest serving Royal Consort, according to Metro.

Next year, Queen Elizabeth and Prince Philip will celebrate their platinum wedding anniversary.