Continent world ultimately persisted with these being regarded as separate continents. From the late 18th century, some geographers started to regard North America and South America as two parts of the world, making five parts in total. Overall though, the fourfold division prevailed well into the 19th century. Europeans discovered Australia in 1606, but for some time it was taken as part of Asia. By the late 18th century, some geographers considered it a continent in its own right, making it the sixth (or fifth for those still taking America as a single continent). In 1813, Samuel Butler wrote of Australia
Continent the "continents" (or mainlands) of Isle of Man, Ireland and Wales and in 1745 to Sumatra. The word "continent" was used in translating Greek and Latin writings about the three "parts" of the world, although in the original languages no word of exactly the same meaning as "continent" was used. While "continent" was used on the one hand for relatively small areas of continuous land, on the other hand geographers again raised Herodotus's query about why a single large landmass should be divided into separate continents. In the mid-17th century, Peter Heylin wrote in his "Cosmographie" that "A Continent is