the degree of arterial disease in the lower extremities is often classified into four categories normal 0 % stenosis 1 49 % stenosis 50 99 % stenosis and total occlusion 100 % stenosissome laboratories further differentiate between 50 74 % stenosis and 75 99 % stenosishe degree of arterial disease in the lower extremities is often classified into four categories normal 0 % stenosis 1 49 % stenosis 50 99 % stenosis and total occlusion 100 % stenosis
Land Rush of 1889. The Oklahoma Land Rush of 1889 was the first land rush into the Unassigned Lands. The area that was opened to settlement included all or part of the present-day Canadian, Cleveland, Kingfisher, Logan, Oklahoma, and Payne counties of the US state of Oklahoma.
The fastest clipper ships cut the travel time from New York to San Francisco from seven months to four months in the 1849 Gold Rush. A gold rush is a new discovery of gold that brings an onrush of miners seeking their fortune. Major gold rushes took place in the 19th century in Australia, New Zealand, Brazil, Canada, South Africa, and the United States, while smaller gold rushes took place elsewhere. The wealth that resulted was distributed widely because of reduced migration costs and low barriers to entry.