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
Mid-Continent Railway Museum Mid-Continent Railway Museum The Mid-Continent Railway Museum is a railroad museum in North Freedom, Wisconsin, United States. The museum consists of static displays as well as a 7-mile round trip ride aboard preserved railroad cars. Mid-Continent Railway Museum's collection emphasizes the preservation of railroad items operated in the upper Midwest from the period of 1880-1916, what the organization refers to as the "Golden Age of Railroading". During that time, railroads saw an unprecedented rate of expansion, growing in size in the United States from 93,000 to 254,037 miles of track. Three steam locomotives are currently under restoration to federal guidelines.