May Day occurs on May 1 and refers to several public holidays.In many countries, May Day is synonymous with International Workers' Day, or Labour Day, a day of political demonstrations and celebrations organised by the unions, anarchists, and socialist groups. May Day is also a traditional holiday in many cultures.
Traditional May Day celebrations
May Day is related to the Celtic festival of Beltane and the Germanic festival of Walpurgis Night. May Day falls exactly half of a year from November 1, another cross-quarter day which is also associated with various northern European pagan and neopagan festivals such as Samhain. May Day marks the end of the uncomfortable winter half of the year in the Northern hemisphere, and it has traditionally been an occasion for popular and often raucous celebrations.
As Europe became Christianized the pagan holidays lost their religious character and either changed into popular secular celebrations, as with May Day, or were merged with or replaced by new Christian holidays as with Christmas, Easter, and All Saint's Day. In the twentieth century, many neopagans began reconstructing the old traditions and celebrating May Day as a pagan religious festival again.
In 1884, in America, the Federation of Organised Trades and Labor Unions passed a resolution in their meeting that all legal ways for their demand to reduce the working hours from 16 to 8 had failed. Therefore they decided to go on strike. The movement gained momentum and on 1st May 1886, a strike call was given. The center of this movement was Chicago. To foil the strike additional police were hired, money for which was given by the Industrialists, For two days the strike remained peaceful. On 3rd May, near the McCormick Harvesting Machine Co. factory, police resorted to unprovoked firing upon unarmed and peaceful demonstration. Resultantly, four laborers died and several other were injured. The next day on May 4th, the organizers announced a big rally against the criminal action of police at market square. The gathering was peaceful. When the last leader was delivering his speech,the police started firing on laborers. Several laborers died and hundreds were injured. Police made an excuse that someone from the gathering hurled a grenade, which resulted in death of one police man. A fake case was registered against labor leaders and 8 leaders were awarded the death sentence. Albert Parson, August Spize, Adolf Fischer and George Angel were hanged on November 11, 1887. Louise Ling committed suicide in jail. The rest of the three were pardoned in 1893. In 1889 it was decided to declare May 1 as labor day. On the first of May 1890, the first May Day was observed in the memory of innocent martyred of Labor Movement. Gradually, the day became a most important phenomena in Labor Movements around the world and being observed now by the Governments every year. The earliest May Day celebrations appeared in pre-Christian times, with the festival of Flora, the Roman Goddess of flowers, and the Walpurgis Night celebrations of the Germanic countries. It is also associated with the Gaelic Beltane. Many pagan celebrations were abandoned or Christianized during the process of conversion in Europe. A more secular version of May Day continues to be observed in Europe and America. In this form, May Day may be best known for its tradition of dancing the Maypole and crowning of the Queen of the May. Various Neopagan groups celebrate reconstructed (to varying degrees) versions of these customs on May the 1st. The day was a traditional summer holiday in many pre-Christian European pagan cultures. While February 1 was the first day of Spring, May 1 was the first day of summer; hence, the summer solstice on June 25 (now June 21) was Midsummer. In the Roman Catholic tradition, May is observed as Mary's month, and in these circles May Day is usually a celebration of the Blessed Virgin Mary. In this connection, in works of art, school skits, and so forth, Mary's head will often be adorned with flowers in a May crowning. Fading in popularity since the late 20th century is the giving of "May baskets," small baskets of sweets and/or flowers, usually left anonymously on neighbours' doorsteps.
In India, ‘May Day’ is commemorated as ‘Labour Day’. The ‘Labour Day’ begins with the United States labour movement in 19th century. The labour movement was started on May 1, 1886 in United States. Some labour organizations in the country called on strike because they wanted 8-hour working days. There was carnage in Haymarket Square in Chicago on May 4th which resulted in killing of at least 12 labors who were killed on the excuse that a rebel threw a bomb into that area.
The rebels did not find an urgent result. But they gained a successful result slowly. When 8-hour working days became a reality, it became a standard in many countries around the world. ‘Labour Day’ was therefore selected as a day for rallies, processions and speeches. ‘Labour Day’ is a most important holiday in United States, Russia and socialist nations.
‘Labour Day’ is an event observed on May 1 in many countries around the globe. ‘Labour Day’ is now frequently a day for processions and parades. Nevertheless, in current years, the commemoration of this day has obtained a new roll, where the workers and trade organizations claim for safety and give the financial growth a humane countenance.
Maharashtra Day on May 1 is celebrated in Maharashtra, a state on western coast of India. Maharashtra attained statehood on 1st of May, 1960 when the then state Bombay state was divided into two states, Maharashtra and Gujarat on the basis of different languages, Marathi and Gujarati, under the Saurashtra re-organization act. Maharashtra retained old capital Bombay, which was later renamed Mumbai.
1 May is celebrated as Labour Day in China. It is a public holiday.
Roodmas was a Christian Mass celebrated in England at midnight on May 1.
Morris dancing on May Day in Oxford, England 2004.
Traditional English May Day rites and celebrations include Morris dancing, crowning a May Queen and celebrations involving a Maypole. Much of this tradition derive from the pagan Anglo-Saxon customs held during "Þrimilci-mōnaþ" (the Old English name for the month of May meaning Month of Three Milkings).
May Day has been a traditional day of festivities throughout the centuries. With Christianity came agricultural feasts such as Plough Sunday (the first Sunday in January), Rogationtide, Harvest Festival and May Day. It is most associated with towns and villages celebrating springtime fertility and revelry with village fetes and community gatherings. Since May 1st is the Feast of St Philip & St James, they became the patron saints of workers. Seeding has been completed by this date and it was convenient to give farm labourers a day off. Perhaps the most significant of the traditions is the Maypole, around which traditional dancers circle with ribbons.
The May Day Bank Holiday, on the first Monday in May, was traditionally the only one to affect the state school calendar, although new arrangements in some areas to even out the length of school terms mean that the Good Friday and Easter Monday Bank Holidays, which vary from year to year, may also fall during term time.
1 May 1707 was the day the Act of Union came into effect, joining England and Scotland to form the Kingdom of Great Britain.
In Oxford, it is traditional for May Morning revellers to gather below the Great Tower of Magdalen College at 6.00am to listen to the college choir sing traditional madrigals as a conclusion to the previous night's celebrations. It is then thought to be traditional for some people to jump off Magdalen Bridge into the River Cherwell. However this has actually only been fashionable since the 1970s. In recent years the bridge has been closed on 1 May to prevent people from jumping, as the water under the bridge is only 2 feet (61 cm) deep and jumping from the bridge has resulted in serious injury in the past yet there are still people who insist on climbing the barriers and leaping into the water, causing injury.
In Durham, students of the University of Durham gather on Prebend's Bridge to see the sunrise and enjoy festivities, folk music, dancing, madrigal singing and a barbecue breakfast. This is an emerging Durham tradition, with patchy observance since 2002.
Whitstable, Kent hosts a good example of more traditional May Day festivities, where the Jack in the Green festival was revived in 1976 and continues to lead an annual procession of morris dancers through the town on the May Bank Holiday. A separate revival occurred in Hastings in 1983 and has become a major event in the town calendar. Padstow also holds its annual 'Obby 'Oss festival. A traditional Sweeps Festival is performed over the May bank holiday in Rochester, Kent where the Jack In the Green is woken at dawn on the 1st of May by Morris dancers.
The town of Sawbridgeworth in Hertfordshire is well known for its mayday celebrations; drinking in one of the eleven Public Houses around the town and at the Good Intent for the Hog Roast. This local tradition has gone on for many years.
The Maydayrun involves thousands of motorbikes taking a 55-mile (89 km) trip from London(Locksbottom) to the Hastings seafront, East Sussex. The event has been taking place for almost 30 years now and has grown in interest from around the country, both commercially and publicly. The event is not officially organised; the police only manage the traffic, while volunteers manage the parking.
Padstow in Cornwall holds its annual 'Obby-Oss' day of festivities. This is believed to be one of the oldest fertility rites in the UK; revellers dance with the Oss through the streets of the town and even through the private gardens of the citizens, accompanied by accordion players and followers dressed in white with red or blue sashes who sing the traditional 'May Day' song. The whole town is decorated with springtime greenery, and every year thousands of onlookers attend. Prior to the 19th century distinctive May day celebrations were widespread throughout West Cornwall , and are being revived in St. Ives and Penzance.
Kingsand, Cawsand and Millbrook in Cornwall celebrate Flower Boat Ritual on the May Day bank holiday. A model of the ship The Black Prince is covered in flowers and is taken in procession from the Quay at Millbrook to the beach at Cawsand where it is cast adrift. The houses in the villages are decorated with flowers and people traditionally wear red and white clothes. There are further celebrations in Cawsand Square with Morris dancing and May pole dancing.
In St Andrews, some of the students gather on the beach late on April 30 and run into the North Sea at sunrise on May Day, occasionally naked. This is accompanied by torchlit processions and much elated celebration.
Both Edinburgh and Glasgow organize Mayday festivals and rallies. In Edinburgh, the Beltane Fire Festival is held on the evening of May eve and into the early hours of May Day on the city's Calton Hill.
A traditional May Day has been celebrated in Ireland since pagan times as the feast of Bealtaine and in latter times as Mary's day, bonfires are lit to mark the coming of summer and to banish the long nights of winter. (Officially Irish Mayday bank holiday is now on the first Monday in May).
On May 1st, 1561, King Charles IX of France received a lily of the valley as a lucky charm. He decided to offer a lily of the valley each year to the ladies of the court. At the beginning of the 20th century, it became custom on the 1st of May, to give a sprig of lily of the valley, a symbol of springtime. The government permits individuals and workers' organisations to sell them free of taxation. It is also traditional for the lady receiving the spray of lily of valley to give a kiss in return. Now, people may present loved ones with bunches of lily of the valley or dog rose flowers 
A stamp from East Germany celebrating the 100-year anniversary of International Workers Day on 1 May 1990.
In rural regions of Germany, especially the Harz Mountains, Walpurgisnacht celebrations of Pagan origin are traditionally held on the night before May Day, including bonfires and the wrapping of maypoles, and young people use this opportunity to party, while the day itself is used by many families to get some fresh air. Motto: "Tanz in den Mai!" ("Dance into May!"). In the Rhineland, a region in the western part of Germany, May 1 is also celebrated by the delivery of a tree covered in streamers to the house of a girl the night before. The tree is typically from a love interest, though a tree wrapped only in white streamers is a sign of dislike. On leap years, it is the responsibility of the females to place the maypole, though the males are still allowed and encouraged to do so.
While most celebrations take place on Mayday eve (see Walpurgis Night in Finland), May Day itself is a public holiday that is the only carnival-style festivity in the country. People, particularly students party on this day, arranging picnics and wearing the student cap. However, all political organizations, including right and left wing parties, also arrange speeches and such events.
In Hawaii, May Day is also known as Lei Day, and is normally set aside as a day to celebrate island culture in general and native Hawaiian culture in particular. While it was invented by a poet and a local newspaper columnist in the 1920s, it has since been adopted by state and local government as well as by the residents, and has taken on a sense of general spring celebration there. The first Lei Day was proposed in 1927 in Honolulu. Leonard "Red" and Ruth Hawk composed "May Day is Lei Day in Hawai'i," the traditional holiday song. Originally it was a contemporary fox trot, later rearranged as the Hawaiian hula song performed today.
May Day festivities at National Park Seminary in Maryland, 1907.
May Day was also celebrated by some early European settlers of the American continent. In some parts of the United States, May Baskets are made. These baskets are small and usually filled with flowers or treats and left at someone's doorstep. The basket giver would ring the bell and run away. The person receiving the basket would try to catch the fleeing giver. If they caught the person, a kiss was to be exchanged.
Modern May Day ceremonies in the U.S. vary greatly from region to region and many unite both the holiday's "Green Root" (pagan) and "Red Root" (labor) traditions. Among the largest is the May Day Parade and Pageant created by In the Heart of the Beast Puppet and Mask Theatre, an event that has happened every year since 1975 in Minneapolis and now attracts some 35,000 people.
May 1 also is recognized in the U.S. as Law Day.
International Workers' Day
Approximately 700,000 people at a May Day concert in Rome Main article: International Workers' Day
May Day can refer to various labour celebrations conducted on May 1 that commemorate the fight for the eight hour day. May Day in this regard is called International Workers' Day, or Labour Day. The idea for a "workers holiday" began in Australia in 1856; after a Stonemason's victory, April 22nd was "Eight-Hour Day", a public holiday. With the idea having spread around the world, the choice of May 1st became a commemoration by the Second International for the people involved in the 1886 Haymarket affair.
The Haymarket affair occurred during the course of a three-day general strike in Chicago, Illinois, United States that involved common laborers, artisans, merchants, and immigrants. Following an incident in which police opened fire and killed four strikers at the McCormick Harvesting Machine Co. plant, a rally was called for the following day at Haymarket Square. Towards the end of the rally, as police moved in to disperse the event and opened fire on the unarmed crowed on the plea that an unknown assailant threw a bomb into the crowd of police. The bomb and resulting police riot left at least a dozen people dead, including one policemen. A sensational show trial ensued in which eight defendants were openly tried for their political beliefs, and not necessarily for any involvement in the bombing. The trial led to the eventual public hanging of four anarchists. The Haymarket incident was a source of outrage from people around the globe. In the following years, memory of the "Haymarket martyrs" was remembered with various May Day job actions and demonstrations.
May Day has become an international celebration of the social and economic achievements of the labour movement. Although the commemoration of May Day as International Workers' Day received its inspiration from the United States, the U.S. Congress designated May 1 as Loyalty Day in 1958 due to the day's perceived appropriation by the Soviet Union. Alternatively, Labor Day traditionally occurs on the first Monday in September in the United States. People often use May Day as a day for political protest, such as the million people who demonstrated against far-right candidate Jean-Marie Le Pen in France, or as a day for protest against government actions, such as rallies in support of undocumented workers across the United States.