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.Continue Reading
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
Clocks were invented roughly 5000 years ago, around 3000 BC. Clocks from this era are called sundials and have undergone many transformations throughout the years to become modern day time-keeping machines.Full Answer >
In 1498, the Chinese created the first toothbrush as it is known today with bristles and a thin handle.Toothbrushes were mentioned as far back as 3,000 BC. They were described as chew sticks that were made of twigs with split threads at the end that could be rubbed vigorously against the teeth to remove food and plaque.Full Answer >
A crude form of math was first invented by the Sumerians in the sixth century BC. Because the Sumerians had developed a settled, agricultural civilization, they needed math as a way to measure plots of land, tax individuals, chart the sky and develop a lunar calendar.Full Answer >
The first abacus is thought to have been invented by the Sumerians between 2700 and 2300 BC. However, earlier cultures may have developed the abacus first.Full Answer >