British queen's reign second to Victoria in length

Queen Elizabeth II has become the second-longest reigning monarch in the last 1,000 years of British royal history.

The queen Thursday passed King George III in terms of total days served. She has been queen for 21,645 days.

George's reign from 1760-1820 reached a total of 21,644 days. He was king when the American colonies broke away from Britain.

Elizabeth II is now second only to Queen Victoria. The 85-year-old queen would surpass Victoria's length of service in September 2015.

The monarch maintains an extremely active engagement schedule and last month attended the gala wedding of her grandson, Prince William, and Kate Middleton, who are now the Duke and Duchess of Cambridge.