As a government agency, the U.S. Post Office will close offices on Labor Day, and no regular mail or packages will be delivered throughout the day. More From Newsweek Vault: ...

The first Labor Day holiday was celebrated on Tuesday, Sept. 5, 1882, in New York City, according to the U.S. Department of Labor. What's closed on Labor Day? Most public and private schools, post ...

As is the case with all federal holidays, the U.S. Postal Service will be taking a break from delivering mail on Monday, Sept. 2, in observance of Labor Day this year. Post offices across the U.S ...

One of the country’s oldest union banners is currently held at Cornell University’s Kheel Center for Labor-Management Documentation and Archives.Presumably dating back to 1887 based on an ...

ROCHESTER, N.Y. — Hundreds of union members and their supporters marched down East Avenue with marching bands, trucks, and banners on Monday in celebration of Labor Day.

U.S. Postal Service trucks are parked at a post office in Glendale, California, on August 23. The USPS has no mail services on Labor Day. Mario Tama/Getty Images ...

As is the case with all federal holidays, the U.S. Postal Service will be taking a break from delivering mail on Monday, Sept. 2, in observance of Labor Day this year. Post offices across the U.S ...

As is the case with all federal holidays, the U.S. Postal Service will be taking a break from delivering mail on Monday, Sept. 2, in observance of Labor Day this year. Post offices across the U.S ...