The Romans had high rise tenements sans toilets over 200 centuries ago.
http://www.historyrevealed.com/article/romans/5-facts-about-roman-insulae
Yes, but just imagine the logistics of taking out the human waste down an 80 story building. Although the waste could be sealed to avoid the smell, having flushing toilets makes it quite a bit more sanitary, and easier to deal with.
Dayumm!
I''ve got to review my grasp of history.
Romans.
20,000 years ago!
Another STEM genius heard from.