Malta’s mysterious cart ruts may not be prehistoric, study finds
A PhD student at the University of Malta has published research challenging the long-held belief that Malta’s iconic cart ruts date back to prehistoric times. The study suggests these grooves, etched into bedrock, were likely formed during the Classical period, between 700 BCE and 870 CE.
Editor, Lazyfounder

30 SEC SUMMARY
- A University of Malta study challenges the belief that Malta’s cart ruts date to prehistoric times.
- Researcher Joel Grima suggests these ruts were formed during the Classical period (700 BCE–870 CE).
- The study analyzed 2,628 tracks across 200+ sites, totaling 31 miles of ruts.
- Statistical evidence links many ruts to ancient quarries active between 750 BCE and 500 CE.
- Experts remain divided on whether the ruts were intentional or formed naturally.
TABLE OF CONTENTS
KEY HIGHLIGHTS
- Joel Grima’s research challenges the prehistoric origin of Malta’s cart ruts, proposing they date to the Classical period (700 BCE–870 CE).
- The study analyzed 2,628 tracks across 200+ sites, totaling 31 miles, linking many ruts to ancient quarries (750 BCE–500 CE).
- Previous dating relied on indirect or circumstantial evidence, according to the study.
- The ruts, up to 23.6 inches deep and spaced 43–59 inches apart, may have formed naturally or been intentionally cut.
- Experts disagree on whether the ruts were used for wheeled carts or slide cars and their role in trade networks.
Study challenges prehistoric origin of Malta’s cart ruts
Joel Grima, a PhD student at the University of Malta, has published research challenging the widely accepted prehistoric origin of Malta’s cart ruts—deep grooves carved into bedrock. According to Gizmodo, Grima’s study proposes that a significant proportion of these ruts were formed during the Classical period, spanning 700 BCE to 870 CE. This period includes the Phoenician colonization and Byzantine rule of Malta.
Data-driven analysis redefines rut dating
The study analyzed 2,628 distinct tracks across more than 200 sites in the Maltese archipelago, covering approximately 31 miles. The largest cluster of ruts contains over 250 pairs, totaling 3.7 miles. These grooves can be as deep as 23.6 inches, with pairs spaced 43 to 59 inches apart.
Grima’s research argues that much of the evidence supporting a prehistoric origin is indirect or circumstantial. Instead, statistical analysis links many of the ruts to ancient quarries active between 750 BCE and 500 CE. This challenges the earlier consensus that the ruts were created during Malta’s prehistory (5200–750 BCE).
Debate over ruts’ purpose and formation continues
While the study provides new evidence, experts remain divided on key questions. Some argue the ruts were intentionally cut for wheeled carts or slide cars, while others believe they formed naturally through erosion or repeated use. There is also disagreement about the extent of the trade networks associated with these ruts.
Archaeologist Anthony Bonanno, also at the University of Malta, has not commented on Grima’s findings, but the debate reflects broader uncertainties in interpreting Malta’s archaeological record.
What this means
Lazyfounder analysis — our interpretation, not reported fact.
This study highlights how new evidence can disrupt long-held assumptions, a lesson relevant to founders and operators. Just as archaeologists relied on indirect evidence for decades, businesses often accept industry dogma without scrutiny. The shift in dating Malta’s cart ruts underscores the value of revisiting assumptions with data—whether in historical research or product development. For startups, this serves as a reminder to question legacy narratives and validate them with fresh analysis.
Key takeaways
- Long-standing assumptions in any field—whether archaeology or business—should be treated as hypotheses, not facts.
- Data-driven analysis can reframe established theories, even in non-technical domains.
- The debate over whether the ruts were intentional or natural mirrors disputes in product design or market strategy.
- Systematic research, like Grima’s large-scale site analysis, can uncover overlooked patterns.
FAQ
Why did researchers previously believe Malta’s cart ruts were prehistoric?
Earlier beliefs relied on indirect and circumstantial evidence, as there was no direct stratigraphic or statistical data linking the ruts to a specific period. The new study argues this lack of evidence was misinterpreted as proof of prehistoric origins.
How does the study link the ruts to the Classical period?
The study used statistical analysis to connect many of the ruts to ancient quarries active between 750 BCE and 500 CE. This period coincides with the Phoenician colonization and Byzantine rule of Malta.
What are the implications of this study for archaeology?
The findings demonstrate how new data can challenge long-held assumptions, even in fields like archaeology. It underscores the importance of revisiting legacy theories with modern analytical methods.
Sources
- Gizmodo · 2026-10-20
Archaeologists Thought Malta’s Mysterious Stone ‘Railways’ Were Prehistoric. The Evidence Tells a Different Story
This story is an original summary drafted with AI by Lazyfounder from the reporting listed above and checked by automated validation. Facts are attributed to their original publishers; sections marked as analysis are Lazyfounder's. Where a source is in another language, facts were machine-translated and quotations are reported, not reproduced. Read the original coverage via the links, and see our AI policy and corrections policy.
About the author
Editor, Lazyfounder
Tarun Mottlia edits LazyFounders, covering Indian startups, funding rounds, AI and product launches. Every story on the site is AI-assisted and checked against its cited sources before publication.
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