ELI5: Explain Like I'm 5

Granite Railway

Granite Railway was the first railway ever built in the United States. It was built in the early 1830s in Quincy, Massachusetts, and was made up of metal rails and wooden ties (or planks). It was built along the side of a granite quarry, so that the workers could load and unload large blocks of granite onto horse-drawn wagons. The wagons then moved the granite along the railway to where it needed to go. The railway made it much easier and faster to move the granite around, as the horses would pull the wagons along the railway faster than they could on the ground.