In 1500 B.C., the people of Crete invented sewage disposal systems. Evidence also indicates that the ancient palace of Knossos had a water closet with a wooden seat and flushing system.Continue Reading
In 500 B.C., the Roman Empire had a system of aqueducts and pipes that created indoor plumbing for bathhouses and public wells, which greatly helped with sanitary conditions. In 1596, Sir John Harrington invented the first flushing water closet, but the invention failed to stick due to poor advancements in sewage systems. In the 17th century, French castles were outfitted with indoor privies. However, they emptied into surrounding moats until a sewage system was designed.
In the 18th century, sewage systems, piping and drains were expertly designed and installed in Chicago and New York City. From 1900 to 1932, water closet designs had several hundred pending patents. Charles Neff and Robert Frame designed the plumbing system that has become the standard in the United States.Learn more about Inventions
Ocean pollution is caused by numerous industrial and domestic activities, which include oil spills, garbage dumping, sewage and factory-waste disposal and the use of toxic pesticides. These activities pollute the oceans through drains, rivers and direct dumping. According to All Recycling Facts, land-based activities account for more than 80 percent of ocean pollution.Full Answer >
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.Full Answer >
Hair dye dates back to the Egyptians in 3400 B.C., when henna was used to cover up gray hair. A Roman doctor named Galen came up with a recipe for black hair dye in 100 A.D., which was tested and proved to be effective in 2006.Full Answer >
While the actual date of its invention is unknown, the rocking horse is known to have been present at around 4000 B.C. in ancient Greece and Persia. Rocking horses with half-moon bases are thought to have originated from cradles. The oldest known rocking horse still in existence as of 2014 is from around 1610 and is thought to have belonged to King Charles I.Full Answer >