References
- ↑ "Ignacy Łukasiewicz: the first kerosene lamp in the world". Archived from the original on 2007-09-18. Retrieved 2007-04-15.
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Franek is the oldest oil shaft in the world, located in the village of Bóbrka, Poland. It was dug in 1854 by hand by Ignacy Łukasiewicz.
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