Labor Day weekend usually means the last hurrah before the end of summer and the beginning of school. But the reasons for the observance started with labor activists and unions calling for a ...

City, county, state and federal offices and courts will be closed Monday in observance of the Labor Day holiday. Regular mail will not be picked up or delivered. City of Pittsburgh garbage ...

Shirley McMarlin Friday, Sept. 3, 2021 7:01 a.m. | Friday, Sept. 3, 2021 7:01 a.m. The first Monday in September is set aside to recognize the social and economic achievements of American workers.