Brendan I. Koerner — American Author born on September 21, 1974,

Brendan Ian Koerner is an American book author and has been a contributing editor or columnist for Wired magazine, The New York Times, Slate magazine and others. His books include Now the Hell Will Start and The Skies Belong to Us... (wikipedia)

According to Ted Watt's 'The First Labor Day Parade,' the September date was chosen because it coincided with a Knights of Labor conference in New York, thus guaranteeing a sizable turnout for the festivities.
In 1887, Oregon became the first state to make Labor Day an official holiday, with Colorado, Massachusetts, New Jersey, and New York quickly following suit.
According to tarot historian Gertrude Moakley, the cards' fanciful images - from the Fool to Death - were inspired by the costumed figures who participated in carnival parades.
Though President Grover Cleveland declared Labor Day a national holiday in 1894, the occasion was first observed on Sept. 5, 1882, in New York City.
Like many of his fellow skyjackers, 49-year-old Arthur Gates Barkley was motivated by a complicated grievance against the federal government. In 1963, the World War II veteran had been fired as a truck driver for a bakery, after one of his supervisors accused him of harassment.