Well, kiddo, a long, long time ago, people discovered coal. It's a black, sparkly rock that's buried in the ground. They learned that if they dug it up and burned it, it could create heat and energy to power machines and homes.
So, people started to mine for coal. This means they went deep into the earth and dug tunnels to find the coal. It was hard and dangerous work. They used pickaxes and shovels to break the coal free and put it into carts.
The first miners were men and boys who worked long hours in the dark and dangerous mines. Sometimes there were accidents, like cave-ins or explosions. The miners could get stuck underground for hours or even days. There was also a risk of breathing in bad air, called black lung, that could make them very sick.
As time passed, more and more people became coal miners. They formed unions to fight for better working conditions and higher wages. One famous event was the Battle of Blair Mountain, where thousands of miners went on strike to demand fair treatment from their employers.
Today, mining for coal is still an important job. However, there are more safety measures in place to protect the miners. We also have other ways to create energy, like wind and solar power, which are much better for the environment.