The International Labor Day is a national holiday which falls on 1st May. It is the holiday of the working people of all over the world. On that day, celebration activities are held all over the world. The International Labor Day is celebrated in more than 80 countries.5月1日是国际劳动节。这是全世界劳动人民的节日。这一天，庆祝活动在世界各地举行。80多个国家庆祝国际劳动节。

To remember the great labor movement, the protests of workers broke out all over the world. This was the predecessor of the International Labor Day. In July 1889, the Second International leaded by Friedrich Engels held a congress in Paris which decided to set 1st May as the International Labor Day.为了纪念伟大的劳工运动，抗议活动在世界各地爆发。这是国际劳动节的前身。1889年7月，由恩格斯领导的第二国际组织在巴黎召开了一次会议，决定将5月1日定为国际劳动节。

The celebration of the International Labor Day in China can be traced back to 1918. On 1st May 1920, the first commemorative activity was held. All industrial cities held huge demonstrations and gatherings. On the eve of the International Labor Day in 1921, a song named The May Day Memorial Song was created and it was spread all over China.在中国，国际劳动节的庆祝活动可以追溯到1918年。1920年5月1日，举行了第一次纪念活动。所有的工业城市都举行了大规模的示威和集会。1921年国际劳动节前夕，一首名为“五一纪念歌”的歌曲被创作出来，传遍了中国。