Today Is June 14

International Bath Day is observed every year on June 14.

Wikipedia

Greek scientist and mathematician Archimedes discovered the Archimedian principle when he stepped into his bath and found the displaced water overflowing. This made him excited as he realised the weight of water displaced by an object equals the amount of buoyancy it gets. Thus an object’s volume could be accurately measured by being submerged in water! Unable to contain his excitement, Archimedes leapt out of the bathtub and yelled, “Eureka, Eureka!” as he ran through the streets of Syracuse.

International Bath Day is observed every year on June 14 as Archimedes' discovery occurred precisely one week before the beginning of summer. In ancient Greece Summer began (and still does today) on June 21st. The week before is June 14th, and this was the date set.

According to records of payment made to King John (1166-1216)'s bath attendant, William Aquarius, the king bathed on average about once every three weeks, which cost a considerable sum of 5d to 6d each, suggesting an elaborate and ceremonial affair. Although this may seem barbaric by modern standards, it was civilized compared to monks who were expected to bathe three times a year, with the right not to bathe at all if they so chose.

In Japan, baths, known as of 'ofuro' are deep, short and made of wood. People wash before entering one, as bathing is seen as a leisure activity.