Leonardo Pisano, who is better known by the name Fibonacci, introduced the Hindu-Arabic number system to Europe at the beginning of the 13th century through his book Liber Abaci, which translates to "Book of Calculation" in English. It enabled Europeans to break free of the cumbersome Roman numeral system and perform calculations using the decimal system. The talented mathematician was also known for introducing to Europe the number sequence named after him, the Fibonacci sequence.Know More
Because his father was a merchant and stationed by the Italian city-state of Pisa in what is now modern-day Algeria, Fibonacci received an education from the Moors in Northern Africa. This enabled him to see the advantages of the Hindu-Arabic arithmetic system over European methods. He also went further in his studies and sought out the leading Arab mathematical instructors in the Mediterranean area to learn more of their methods. Fibonacci returned from his journeys around 1200, and at the age of 32, he completed his work on "Liber Abaci" in 1202.
The decimal positional system, the use of zero as a place holder, the squaring of fractions and the principles of algorithms were all new mathematical concepts that Fibonacci brought to the European world. He also introduced the Fibonacci sequence, which is intimately connected to the Golden Mean (also known as the Divine Proportion) and represents many of the proportional ratios found in nature. The sequence is also used in art and architecture.Learn more about Numbers
The Mayan number system is a base-twenty system that was developed by the Mayan civilization around the fourth century A.D. Only three symbols are used to represent all numeric values: a shell for zero, a bar for five and a dot for one. These symbols are arranged in columns that are read from top to bottom, and the columns are arranged in powers of 20.Full Answer >
A numeric number, more commonly referred to as a numeral, is a symbol or name used to represent a number. A numeral may be expressed in words, such as seventy-five, or by arranging digits in a place-value system, such as by writing 75.Full Answer >
The first practical number system was used by the ancient Sumerian city-states beginning sometime between 3500 B.C. and 2800 B.C. in the Mesopotamian region between the Tigris and Euphrates Rivers, which is now part of present-day Iraq. Their system was based on the number 60 rather than the number 10. This numerical system, which was also adopted by the Babylonian civilization that followed in Mesopotamia around 2000 B.C., was used for administrative and business documentation.Full Answer >
Some interesting facts about the number 10 include the Korean alphabet has 10 vowels, Virginia was the 10th state to enter the Union and the metric system is based on the number 10. In England, a person can be convicted of a criminal offense at the age of 10 and can receive a life sentence if found guilty of murder.Full Answer >