'In 1837 in Machunk, Pennsylvania, this kind of coal was used to smelt iron for the first time'
Anthracite
THE 1830S: In 1837 in Machunk, Pennsylvania, this kind of coal was used to smelt iron for the first time
In 1837 in Machunk, Pennsylvania, this kind of coal was used to smelt iron for the first time
In 1837 in Machunk, Pennsylvania, this kind of coal was used to smelt iron for the first time
THE 1830S
Anthracite
THE 1830S