culture blurb...what is labor day

from wikipedia:

Labor Day is a United States federal holiday observed on the first Monday in September. The holiday originated in 1882 as the Central Labor Union (of New York City) sought to create "a day off for the working citizens".
Congress made Labor Day a federal holiday in 1894.[1] All fifty states have made Labor Day a state holiday.
Traditionally, Labor Day is celebrated by most Americans as the symbolic end of the summer.