tea

In the 18th century, it is Anna, Duchess of Bedford, companion and friend of Queen Victoria, who realized that a small snack consisting of tea, cakes and/or small sandwiches could satisfy the appetite of many until at the late dinner of 8 p.m. She began the tradition by inviting her friends regularly to Woburn Abbey during the summer. Back in London, she popularized tea time among the British high society by sending them cards telling them to join her for "a tea and a walk". This is how the afternoon tea was.  

Then, in the 19th century, afternoon tea in different forms (high tea, low tea, etc.) became part of the day for all people, regardless of class, and became the Five O'Clock Tea.

Today, Queen Elizabeth II never leaves Buckingham Palace without her kettle and a box of Fortnum & Mason tea.