During the Industrial Revolution, the people in factories worked fourteen or even more hours a day. There occurred a struggle.
In May 1st, strike, one worker was instantly killed, five or six others were seriously wounded and many others were body injured. The causes that led to the struggle were that the workers were being deprived of their rights and they had to work a long shift, fourteen or even more hours a day.
The privileges the workers enjoy today are better payment, better working conditions and better lives.
The lesson we get from the events of 1st May 1886 is that the workers will continue to be exploited unless they stand up together and speak out their rights.