Window tax?

Here is a bit of history of which I was not aware: The window tax.

Back in the 18th, 19th century in many jurisdictions around the world, buildings, especially rental properties, were taxed by the number of windows that they sported.

The advantage of this tax was that it was easy to assess: the assessor just had to walk around the building and count.

The unfortunate reality, namely that the tax most disproportionately affected the poorest of the poor? Well, eventually these taxes were repealed but I wonder how many generations grew up in windowless rooms.