Kerosene lamp

The Piarist Fathers' hospital in Lviv helped Łukasiewicz popularize his invention.

An excerpt from the article 13 facts about Kerosene lamp
On July 31, 1853, in Lviv, doctor Zaorski, a surgeon, operated on his patient Władysław Holecki. The operation occurred at night in a room lit by one of Ignacy Łukasiewicz's first kerosene lamps.