Toilet paper is one of the greatest inventions.

Toilet paper was invented by chinese, back to 600 AD. During the early 14th century, it was recorded that in what is now Zhejiang alone, 10M packages of 1,000 to 10,000 sheets of toilet paper were manufactured annually. During the Ming dynasty (1368–1644 AD), it was recorded in 1393 that an annual supply of 720,000 sheets of toilet paper (approximately 2 by 3 ft (60 by 90 cm)) were produced for the general use of the imperial court at the capital of Nanjing.