The specialty evolved from general and cardiac surgery as well as minimally invasive techniques pioneered by interventional radiology. The vascular surgeon is trained in the diagnosis and management of diseases affecting all parts of the vascular system except those of the heart and brain.
More than 1,800 miles in 10 days! From St. Joseph, Missouri, to Sacramento, California the Pony Express could deliver a letter faster than ever before. In operation for only 18 months between April 1860 and October 1861, the Pony Express nevertheless has become synonymous with the Old West.
The Pony Express was set up to provide a fresh horse every 10-15 miles and a fresh rider every 75-100 miles. 75 horses were needed total to make a one-way trip. Average speed was 10 miles per hour. On April 9 at 6:45 p.m., the first rider from the east reached Salt Lake City, Utah.