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Why May 1 is Labour Day: History and significance explained

Why is May 1 called May Day? Know its history, link to labour movement, Haymarket Affair, and how it is celebrated in India.

By Surjosnata Chatterjee

Apr 30, 2026 23:07 IST

May 1, also called May Day, has been observed all over the globe, having two layers of significance. It may be noted that May Day is generally considered as the day of workers worldwide but its historical background dates back to the days when it was celebrated as a seasonal festival to welcome spring.

From spring celebrations to labour movement

Historically, May Day was rooted in European traditions celebrating the onset of spring. Festivals such as the Roman Floralia and the Celtic Beltane marked fertility, renewal and the beginning of a new agricultural cycle.

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However, with the passage of time, the significance of the day started changing. At the end of the 19th century, 1st May came to be identified with labour struggle after the Haymarket Affair in Chicago. An event demanding the adoption of eight hours work schedule took a violent turn after a blast and several lives were lost and labour agitators executed.



Labourers work at a bricks factory on the eve of Labour Day ANI

In the year 1889, an international federation of socialist and labour groups formally declared 1st May as International Workers' Day.

The ‘8-8-8’ demand and global observance

There is one main point behind the entire movement and it can be stated as the balance between labour and other activities. The famous slogan adopted by labour leaders for this purpose was – 'eight hours of work, eight hours of sleep, and eight hours for personal use'.


Labourers loading bags of wheat in a truck ANI


Whereas in many nations, Labor Day is celebrated on 1st May, there are many others which celebrate Labour Day on different days..

How India observes May Day

India’s first May Day celebration took place in 1923 in Madras (now Chennai), led by labour leader Singaravelar. The day is now observed in several states as a public holiday, marked by rallies, union gatherings and discussions on workers’ welfare.

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In Maharashtra, May 1 also coincides with Maharashtra Day, commemorating the state’s formation in 1960. The overlap makes it a significant public holiday, with institutions such as banks and stock exchanges remaining closed.

Despite sounding similar, “May Day” and “mayday” carry entirely different meanings. While the former relates to labour rights and seasonal change, the latter is an international distress signal used in emergencies.

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