International Workers' Day, also known as Labor Day in some countries, is a celebration of laborers and the working classes promoted by the international labor movement, socialists and communists, and occurs every year on May 1.
Workers Rally for Rights, Higher Wages

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Foreign labors in Taiwan shout slogans during a May Day rally in Taipei, Taiwan, May 1, 2016. Thousands of protesters from different labor groups protest on the street to ask for raising minimum wage and shorter working hours.

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South Korean unionized workers stage a May Day rally in front of City Hall in Seoul, May 1, 2016. Tens of thousands of South Koreans took part in May Day protests to criticize government labor reforms and to call for a higher minimum wage.

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Indonesian workers shout slogans during a May Day rally in Jakarta, Indonesia, May 1, 2016. Thousands of workers urged the government to raise minimum wages and improve working conditions.

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People walk with flags and banners at Red Square during a May Day rally in Moscow, Russia, May 1, 2016.