Normal ER visits are those that bring themselves in. Trauma patients are the ones coming in via 911 calls, ambulances, helicopters, etc. General rule of thumb-they are obvious exceptions as stabbings & gunshot wounds do happen outside of hospitals or the victims come wandering in.
Labor Day is a United States federal holiday which is observed on the first Monday in September each year. The holiday originated on September 5, 1882 as the Central Labor Union of New York City sought to create a day off work for the working citizens.
The first Labor Day in the USA was celebrated on Tuesday, September 5 1882, in New York City as per the plans of the Central Labor Union. In 1884 the first Monday in September was selected as the Labor Day holiday, as originally proposed.