Answer:
Kerosene allowed better lighting throughout the country.
Step-by-step explanation:
When kerosene refinement became possible, kerosene became a very cheap and affordable fuel for virtually all citizens of the country, making it a strong fuel to be used in lamps, when the country did not have an electric lighting system efficient as today.
In some underdeveloped countries where electricity is still deficient or poorly distributed, kerosene is still used to light houses at night when sunlight is not available.