五一劳动节起源于19世纪末期，最初是为纪念美国芝加哥工人的罢工斗争，争取八小时工作制而设立的。现在，五一劳动节已经成为世界上许多国家和地区的公共假日。 'May Day' originated from the labor movement in the United States in the late 19th century, and was initially established to commemorate the strike of Chicago workers who fought for the eight-hour working day. Nowadays, the May Day has become a public holiday in many countries and regions around the world.