[paol]

Kerosene lamps were ubiquitous before electric lighting. Look at the pictures in the wikipedia page[0], you'll recognize them for sure.

[0] https://en.wikipedia.org/wiki/Kerosene_lamp

[Pitarou]

It seems that, in trying to make a second point, jgrahamc accidentally proved his first.

[jgrahamc]

It wasn't an accident. I was showing that the ambiguity introduced by his language means that it's hard to understand what's really going on.

[Pitarou]

Well that was clever. :-)