Today Is November 19

World Toilet Day is an official United Nations international observance day on November 19. The day celebrates toilets and raises awareness of the 4.2 billion people living without access to safely managed sanitation. It is about taking action to tackle the global sanitation crisis and achieve water and sanitation for all by 2030. The UN General Assembly declared World Toilet Day an official UN day in 2013, after Singapore had tabled the resolution.

 World Toilet Day 2015 in Pakistan By Kutoid - World Toilet Organization, Singapore,

Not only did 43% of Pompeii's buildings have indoor toilets, some also had plumbing for toilets on the second floor.

Sir John Harington, author, courtier and godson to Queen Elizabeth I, invented the world's first flushing lavatory, called the Ajax, in 1589. Harrington had been banished from the court for telling risqué stories in front of the ladies. In the mansion he built at Kelston, in Somerset he installed the world's first toilet, which he called "a privy in perfection". 

Yorkshire plumber Thomas Crapper perfected his flushing toilet valve in 1863. By drawing water uphill through a sealed cistern, it was both more effective and hygienic than previous lavatory systems. 

Most toilets flush in E flat.