Complaint Ratios: the ratio, expressed as a percentage, is the number of closed confirmed complaints divided by the number of policies the company had in force for the line of insurance and year indicated.
Thomas Edison invented the first ever light bulb in 1880. This is arguably the most important invention in the history of mankind. Britain underwent an Industrial Revolution that helped Britain's economy greatly during the Victorian Era.
Best Answer: The wheel is probably the most important mechanical invention of all time. Nearly every machine built since the beginning of the Industrial Revolution involves a single, basic principle embodied in one of mankindâs truly significant inventions. wheel with spokes first appeared on Egyptian chariots around 2000 BC, and wheels seem to have developed in Europe by 1400 BC without any influence from the Middle East.