the.com/sanitation
The invisible heroism of making waste disappear before it makes you disappear.
means The systems and practices that keep human waste, water, and surroundings clean enough to not kill us.
from From Latin sanitas, health — same root as sane, because clean and healthy were always the same idea.
Biggest medical winVoted greatest medical advance since 1840, beating antibiotics.
Still missingBillions lack safely managed toilets today.
London turning pointThe 1858 Great Stink forced sewers into existence.