In 1611, John Speed, an English historian and renowned cartographer, published his ‘Theatre of the Empire of Great Britain’. This was the earliest English attempt at producing an atlas on a large scale. The second of this work’s four volumes covered Wales and included a map of Wales along with individual maps of the 13 Welsh counties.
Most of the maps in Speed’s work are dated 1610, though a few are earlier. Speed’s ‘Theatre’ was extremely successful and its maps became the basis for folio atlases produced up to the mid-18th century.
Speed’s work improves on that of previous works by other cartographers e.g. Christopher Saxton (1542x4?–1610/11), by providing greater detail and also by including small inset plans of important towns on each map.