There is evidence suggesting that indoor plumbing began in 8000 BC, when households in Scotland used basic plumbing to carry water to a nearby creek. Plumbing continued to advance through the ancient era, but was neglected in Europe until the 19th century, which was when large systems were developed.Know More
The earliest evidence of indoor plumbing comes from Scotland in 8000 BC, where water was used to flush waste from indoor troughs to a nearby creek. In 4000 BC, perforated bricks were use to drain water from homes in Iraq to pits that lay beneath them. By 3000 BC, people living in Crete were using rudimentary toilet systems, which required servants to pour water that would flush waste away.
During the middle ages, parts of Mesoamerica used basic flushing systems. However, many parts of Europe saw a decline in the advancement of indoor plumbing, leading to unsanitary conditions. This began to change in the 19th century when public health officials linked the spread of disease with unsanitary conditions.
This led to the advancement of underground sewage systems, which required indoor plumbing. Initially, lead piping was used in many parts of the world, and galvanized iron in the U.S. Eventually, most households relied on copper piping for their indoor plumbing systems.Learn more about Inventions
StyleList claims that Egyptians invented the first version of the flip-flop sandal around 4000 B.C. The oldest existing pair of flip-flops is on display at the British Museum.Full Answer >
Dr. James Naismith is credited for inventing netball. The no-dribble game was a spinoff of basketball that he invented in 1891 at a YMCA in Springfield, Mass.Full Answer >
In 1897, the pencil sharpener was invented by John Lee Love. He was issued a patent for it on Nov. 23, 1897. That style of pencil sharpener is still in use today in schools and offices around the world, according to About.com Inventors. It was one of several noteworthy inventions of 1897.Full Answer >
Algebra, in its earliest form, was first used by the Babylonians as early as 1700 B.C. It is possible that algebra was used before this time, but historical records are incomplete. However, the algebra used by early civilizations was much more rudimentary than the algebra currently in use today.Full Answer >