Coal miners leave mine, work with coal cars in 1920s; John L. Lewis in Washington, DC, in 1952

The video discusses the long and difficult struggle of coal miners in the early 20th century, who worked under dangerous conditions for low wages. It highlights their fight for better safety measures and fair wages, largely attributed to the efforts of John Llewellyn Lewis.

Describe the overall struggle for the emancipation of coal miners.

What advancements have been made in safety and wages for coal miners since the early 20th century?