Nursing uniforms have certainly changed from years ago. The traditional nursing uniform was a dress, apron and cap. The were originally derived from the nun’s habit. Before the 19th century, the care of sick and injured were often left to the nuns. When lay women were first trained as nurses, the uniform was first designed based on the nun’s habit.
Miss VanRensselaer, a student at Miss Nightingale’s School of Nursing designed the original uniform for students at the school which consisted mainly of a blue outfit.
Today, nursing uniforms are more varied and comfortable as can been seen here http://www.blueskyscrubs.com/categories/Scrubs/Scrubs-for-Women/. This uniforms as easier to clean, take care of and work in than the old style dress, apron and cap!