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.
The most important invention in the History of Mankind is the WHEEL .. but our most important discovery is HOW TO MAKE FIRE. The discovery of DNA. It has helped so much- from solving crimes to diagnosing and curing diseases.