Workers and activists marked May Day today with rallies to demand their government address labour issues.
International Workers' Day is a public holiday in many countries, though activities are restricted in some places, sometimes leading to confrontations.
A look at some of the events around the world:
RUSSIA
More than 100,000 people came out on the streets on Moscow to march in the traditional May Day parade.
Moscow's Federation of Trade Unions said about 120,000 people marched from the Red Square on the main streets of the Russian capital to mark May Day. Over recent years, the parade became a highly orchestrated show of power by Russian authorities and the ruling United Russia party, with the demonstrators refraining from criticizing the government.
In St Petersburg, Russia's second-largest city, however, Russians unhappy with the Kremlin's attempts to curtail internet freedom joined the official May Day demonstration. Several hundred people braved the rainy weather and joined the column marching across St. Petersburg to protest the government's ban of popular messaging app Telegram. About 10,000 people rallied in Moscow on Monday to protest the blocking of Telegram.
TURKEY
Police detained dozens of demonstrators during May Day events around Istanbul, most of them protesters who tried to march toward the city's symbolic main square in defiance of a ban.
Turkey declared Taksim Square off-limits to May Day demonstrations citing security concerns. Police blocked roads leading to the square but allowed small groups of labor union representatives to lay wreaths and flowers at monuments there. Still, small groups of demonstrators, chanting "long live May 1" and "Taksim cannot be off limits on May 1" tried to push their way into the square throughout the day, leading to scuffles with police. At least 45 demonstrators were detained.
Major trade unions gathered at a government-designated area in Istanbul for a large rally. At least six people were detained following scuffles with police at a security checkpoint leading to the rally ground.Taksim holds a symbolic value for Turkey's labour movement. In 1977, 34 people were killed there during a May Day event when shots were fired into the crowd from a nearby building.
GREECE
Thousands of Greeks are marching through central Athens in at least three separate May Day demonstrations.
Museums were also shut while ferries remain were tied up in port and public transport operated on a reduced schedule in strikes marking labour day.
Police said at least 7,000 people were at the first demonstration in Athens, which was organized by a communist party-led union. The protesters marched by parliament and headed up a major avenue to the United States Embassy.
Another four demonstrations were planned in Greece's second largest city of Thessaloniki in the north. Trains, the suburban railway, urban trolleys and ferries to and from the islands suspended operations for the day, while buses and the Athens metro system were operating on reduced schedules.
GERMANY
Tens of thousands of workers marched across Germany and Austria rallying for their rights in the face of globalisation.
In Vienna, some 12,000 people gathered in front of city hall, some carrying banners with slogans against planned welfare cuts by the new government.
Meanwhile, around 4,000 union supporters marched on different routes through Berlin, before assembling at the German capital's landmark Brandenburg Gate. "We have more rich and even richer people than we ever had before," said protester Aimo Tuegel in Berlin."And, on the other hand, work and working conditions for workers continuing to get worse."
In Nuremberg, where the German Confederation of Trade Unions, or DGB, held its main event this year, some 6,500 protesters cheered as the group's leader, Reiner Hoffmann, said the unions "managed to civilize industrial capitalism some 100 years ago" and would also be able to tackle contemporary challenges like digitalisation.
The DGB said that altogether some 340,000 people participated in almost 500 May Day events across Germany.
SCANDINAVIA
Danish labour union officials and left-leaning lawmakers started the day with traditional addresses to employees at work places throughout the Scandinavian country. later in the day, thousands gathered in large parks around the country, despite rain, chilly temperatures and winds, to listen to May Day speeches that often criticised the center-right government.
While May Day was mainly a left-leaning event in Denmark, the right and the left flanks held speeches in Sweden and Norway.
Swedish Social Democratic Prime Minister Stefan lofven suggested retired people should get more as he toured elderly homes while the center-right opposition rejected the idea. Parliamentary elections in Sweden are scheduled September 9.
In Norway, Sylvi listhaug, a former justice minister until she resigned in March for writing a Facebook post claiming the opposition labor Party was more interested in protecting the rights of terrorists than the Norwegian people, lashed out at its leader Jonas Gahr Store who heads Norway's largest party, for not being folksy, and warned against a weak immigration line.
SPAIN
More than 70 cities across Spain have held May Day marches calling for gender equality, higher salaries and pensions now that the country's economy is back on track.
The demonstration in Madrid was among the biggest, with thousands rallying behind the slogan "Time to win." CCOO union official Unai Sordo says that "a social majority is emerging from the psychosis of the (global financial) crisis" in 2008 that hit Spain hard. Pepe Alvarez, the secretary general of UGT, the other main union in Spain, said that meeting the demands of feminists, youths and pensioners are necessary to "redistribute wealth" in the country.
Spain's economy, the fourth-largest in the 19-country eurozone, has in recent years posted some of the fastest economic growth in Europe.
