Collier Serfdom: Scotland's Bound Miners and Salters, 1606–1799

Each major claim carries one of three labels. established means supported by primary records, official bodies or several independent reliable sources. shared means the core fact is sound but sources disagree on details, dates or interpretation. traditional means widely repeated but not traceable to a primary or independent source.

Historians debate how harsh the system was in practice. Some point out that bound colliers were often relatively well paid because labour was scarce, and that some valued the security. Others stress the legal unfreedom and its effect on families. The comparison with chattel slavery is contested: colliers were not property in law, but they could not leave. This card uses "serfdom" and "bondage", the terms used by historians and by Parliament itself.

The 1606 Act

established By the early seventeenth century Scotland's coal and salt industries were growing, especially around the Firth of Forth, where coal was burned in great iron pans to evaporate seawater for salt. Labour was scarce and the work was hated. In 1606 the Scottish Parliament passed an Act that no one could employ a collier, coal bearer or salter without written authority from the master he had last served, with a fine of £100 for anyone who did. A worker who left without permission could be reclaimed within a year and punished as a thief, having "stolen himself" from his master.

Bound for life

established In effect, colliers and salters became bound to their employers for life. When a coal-owner sold his estate or mine, the colliers were sold with it; the judge Lord Cockburn later wrote that they were transferred "as part of the gearing". Runaways were actively pursued, and some were sent to houses of correction. In 1701, when Scotland passed its own Habeas Corpus Act protecting people from arbitrary imprisonment, colliers and salters were explicitly excluded.

shared The custom of arling extended bondage to the next generation. An "arle" was a token payment sealing a bargain; if a father accepted a gift from the coal-owner at his child's baptism, the child was held to be bound to the pit. How widespread and legally binding this was is debated, but contemporaries described it.

Families underground

established Mining was family work. Men cut the coal; women and children, the coal bearers, carried it in baskets on their backs up steep ladders or along low passages to the surface, often in loads of well over a hundredweight. Children went underground young, sometimes as early as four, more often at eight or nine. These conditions continued after formal emancipation and were exposed by the Children's Employment Commission of 1842.

The 1775 Act

established By the 1770s the system looked anomalous, and coal-owners also wanted to attract more workers into the expanding industry. The Colliers and Salters (Scotland) Act 1775 stated in its preamble that "many colliers, coal-bearers and salters are in a state of slavery or bondage". It declared that new workers entering the trade after 1775 would be free, and that existing bound colliers could gain their freedom after a period of further service, on application to a sheriff court.

shared In practice the 1775 Act achieved little. Many colliers could not afford the legal process, did not know their rights or were in debt to their masters, and the conditions were easily evaded. Historians generally agree that it was a cautious, owner-friendly reform.

Emancipation, 1799

established A further Act of 1799 declared that all colliers in Scotland were "to be free from their servitude". After nearly two centuries, bound labour in Scottish mines and salt pans came to an end. Working conditions remained brutal, and it took the Mines Act 1842 to ban women and boys under ten from working underground.

Why it matters

shared Collier serfdom is rarely taught in Scottish schools, yet it overlapped with the Scottish Enlightenment and with Scotland's involvement in Atlantic slavery. Some writers at the time noted the irony of a free Britain with bound workers in its mines. Today it is a reminder that unfree labour was part of Scotland's own industrial history, not only something Scots profited from abroad.

• Colliers who ran away were said to have "stolen themselves" from their masters.
• When a mine was sold, its workers went with it.
• Scotland's 1701 Habeas Corpus Act excluded colliers and salters.
• Parliament itself described them in 1775 as "in a state of slavery or bondage".
• Full emancipation came only in 1799.
• Women and children carried coal up ladders on their backs.

• Myth: Colliers were legal property, the same as chattel slaves. They were not property in law, but they were bound to their employers and could not leave. Parliament itself described their condition in 1775 as "slavery or bondage". The comparison with chattel slavery is contested.
• Myth: The 1775 Act freed the colliers. It began a gradual, conditional emancipation that proved largely ineffective. Final freedom came with the Act of 1799.
• Disputed: That every bound child was tied to the pit by "arling". Contemporaries described the custom of accepting a gift at a child's baptism, but how widespread and legally binding it was is debated.
• Disputed: How harsh the system was in practice. Some historians point out that bound colliers were often relatively well paid because labour was scarce, and that some valued the security. Others stress the legal unfreedom and its effect on families.