Elizabeth II will become Britain’s longest-reigning monarch at around 5.30pm on Wednesday, breaking the record set by Queen Victoria, her great-great grandmother.
The 89-year-old came to the throne in 1952. Celebrations will include a flotilla of historic ships, leisure cruisers and passenger ships, which will sail from Tower Bridge to the Houses of Parliament. HMS Belfast will sound a four-gun salute. The Queen will also travel in a steam train along the Scottish Borders Railway to celebrate its opening – the £294 million route is the longest new line to open in Britain in a century. Read more: bbc.co.uk