A new map of Berkshire, divided into Hundreds, exhibiting its roads, rivers, and parks, first published by John Cary circa 1801.

John Cary (1754 - 1835) was an English cartographer, engraver, and map seller, prominent in London during the late 18th century and early 19th century. Originally produced using copper plates, and fine engraving, Cary's maps are highly detailed and easily readable.
When this map was published:
In 1707 the Act of Union abolished the Kingdom of England and the Kingdom of Scotland, and their respective parliaments, to create a unified Kingdom of Great Britain with a single Parliament of Great Britain. Wales became part of the union under England's authority. In 1801 a further Act of Union united Great Britain with Ireland under the name of the United Kingdom of Great Britain and Ireland. The national flag, the Union Jack, was officially adopted in 1801. The Union Jack incorporates the red cross of St.George (England), the white saltire of St.Andrew (Scotland), and the red saltire of St.Patrick (Ireland). The welsh retained their language and culture, and their national flag is not represented in the Union Jack. The flag of Wales is a red dragon on a green and white field.