Wales in 44 historical maps: 1150-2018 (134 pages). The name Wales (and Welsh) derives from the Germanic root Walh (plural Walha). The name refers to the Celtic tribes known to the Romans as Volcae, being used to identify all Celtic inhabitants of the Roman Empire. The Welsh name for Wales is Cymry. The word is descended from the Brythonic word combrogi, meaning “fellow-countrymen”. The Latinised form is Cambria. It has survived in various geographical names; e.g. the Cambrian Mountains, which cover much of Wales. (They also gave their name to the Cambrian geological period.) The name Cambria was also used on the earliest printed maps of Wales, at the end of the 16th century. On later maps it would become Wallia (Latin) and Wales (modern English).

Scotland in 49 historical maps: 150AD-2018 (144 pages). The origin of the name Scotland is uncertain. Most likely it was introduced by the Greeks and Romans. It may be derived from the Greek word Scotos, a term applied to the Gaels (Celtic tribe). Or from the Latin word Sco(t)ti, which means “dark”, referring to the foggy climate. By the end of the 11th century the Late Latin word Scotia (land of the Scots) was being used to refer to (Gaelic-speaking) Scotland north of the river Forth. Caledonia is also an old Latin name for Scotland, referring tot the Caledonii tribes. It is possibly based on a Brythonic word for “hard” or “tough” (represented by the modern Welsh caled). Being part of the British Isles, Scotland was already described by Ptolemy in his Geographia (150AD). The accompanying maps were worked out again by European cartographers at the end of the 15th century. The first (printed) separate maps of Scotland appeared in the 16th century.

Ireland in 48 historical maps: 150AD-2018 (142 pages). The name Ireland is derived from the Celtic word Eire, meaning “the fertile place”. On ancient (world) maps the Latin name Hibernia or Ibernia (later Irlandia) was used, which refers to the wintry or cold climate of this remote place. Ireland was already described by Ptolemy in his Geographia (150AD). The accompanying maps were worked out again by European cartographers at the end of the 15th century. Being part of the British Isles, Ireland is also depicted on the Mappa Mundi in medieval times. The coastline was drawn in more detail on 15th century Portolan charts (nautical maps). The first (printed) separate maps of Ireland appeared in the 16th century.

The United Kingdom in 49 historical maps: 150AD-2018 (144 pages). The UK is a self-descriptive short-form name for “United Kingdom of Great Britain and Northern Ireland”. * The name Great Britain or Larger Britain, from Mediaeval Latin Britannia Maior, was first recorded by Geoffrey of Monmouth, who used it to distinguish the island from Britannia Minor (Little Britain) or Brittany in modern France. In classical times, Ptolemy also called the island Megale Brettania, in contrast to the smaller island of Ireland, which he called Mikra Brettania (Little Britain). The name Britain (or Latin name Britannia) most likely originates - via French or Welsh (Prydain) - from pretani, meaning the “painted ones”. It refers to the use of body-paint and tattoos by early inhabitants of the islands. It may also be derived from the Celtic goddess Brigid. The British Isles were already described by Ptolemy in his Geographia (150AD). The accompanying maps were worked out again by European cartographers at the end of the 15th century. The first (printed) separate maps appeared in the 16th century. *Before the independence of Ireland in 1916, the UK comprised present-day England (plus Wales), Scotland, Northern-Ireland and the Republic of Ireland. The term British Isles is still used to identify these 5 entities.