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Why May 1 Is Celebrated As Labour Day Across The World?
24htopnews | May 2, 2026 11:08 AM CST

The Haymarket Affair in Chicago was the key event that led to the observance of May 1. Thousands of workers had gone on strike demanding an eight-hour workday. During a peaceful rally at Haymarket Square, violence broke out after an unknown person threw a bomb at the police, leading to deaths and injuries on both sides.

Labour Day, or International Workers' Day, commonly known as May Day, is celebrated on May 1 across many countries to honour the contributions and rights of workers. The date has its roots in the late 19th-century labour movement, particularly in the United States, where workers were fighting for better working conditions, fair wages, and reasonable hours. In many countries, it is a public holiday, which allows workers a day off, frequently accompanied by celebrations, social gatherings, and speeches.

Haymarket Affair in Chicago

The Haymarket Affair in Chicago was the key event that led to the observance of May 1. Thousands of workers had gone on strike demanding an eight-hour workday. During a peaceful rally at Haymarket Square, violence broke out after an unknown person threw a bomb at the police, leading to deaths and injuries on both sides. The incident became a symbol of workers’ struggles and sacrifices. May 1 commemorates the 1886 Haymarket Affair in Chicago.

In India, Labour Day was first celebrated in Chennai


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