Urticaria is also known as 'nettlerash' or 'hives'. It consists of wheals-spots or patches of raised red or white skin-each of which usually clears away in a few hours, to be replaced by other fresh wheals. The wheals are usually itchy, painful or cause a burning sensation.
1 1893: the original Ferris Wheel was 80.4 metres (264 ft) tall. 2  Built for the World's Columbian Exposition in Chicago, Illinois, it was moved to St. Louis, Missouri, in 1904 for the Louisiana Purchase Exposition, and demolished there in 1906.
With $400,000 in new debt, the investors sold the wheel for $1,800 to a new group, which reassembled the parts as the Observation Wheel in St. Louis for the Louisiana Purchase Exposition of 1904, where another three million riders enjoyed Ferris's invention.