Henry Moule invented the earth closet.And it was Thomas Crapper invented a flushing toilet.
The Romans had communal toilets, one in Pompei seating up to 60 at once.
The standard British toilet flush is measured by dropping half a torn up Daily Telegraph newspaper down it and flushing. If it goes, it passes, if it doesn't the flush isn't strong enough.
Posted elsewhere, but relevant, none the less....
At one time, the public loos in Aldershot (a military town) had paper with 'Government Property - now wash your hands please' written on it.....
LTS