I was reading A Coffin for Dimitrios (great book), and found a character saying “send me a pneumatique when you get to Paris.” And in fact, there was a series of pneumatic tubes to speed the mail in Paris for over 100 years. Thought it was cool. Here’s the wiki as well.
Some of those systems are still around. For example, Roosevelt Island in NYC has a pneumatic trash collection system. Apparently it’s the only part of NYC that doesn’t have trash piling up on the streets/sidewalks all the time.
We have had those in parts of Sweden for a long time.
Apparently they were invented in Sweden in the 1960s
But most of Sweden doesn’t have those and we never have trash bags or something on the streets.