1. How did the ancients use numbers?
By: Yuri. Ihara

2. Introduction 1. History facts 2. Number 0 3. Introduction to Europe
Explain about Roman numerals and Greek numerals.
2. Number 0
Explain about number 0.
3. Introduction to Europe
Explain about Europe and number 0.
4. Expansion of maths
Explain about history of math

3. 1. Historical facts Roman numerals Greek numerals
The numbers 1 to 10 can be expressed in Roman numerals as follows:
I, II, III, IV, V, VI, VII, VIII, IX, and X.
The Roman numeral system is decimal but not directly positional and does not include a zero.
Greek numerals
Greek numerals are a system of representing numbers using letters of the Greek alphabet.

4. 2. Number 0 Where did the number Zero come from?
Number Zero came from India.
In India there is an early idea is expressed as “0” state “nothing”, had been recognized as one of several “0”.

5. 3. Introduction to Europe
There are about 40 countries in Europe.
When did number 0 spread to Europe?
Had many people be calculated using the abacus and Roman numerals unit the 16th century in Europe was transferred to the years around the 12th century.
What city in Italy first used the number Zero?
Pisa used first in Italy.

6. 4. Expansion of maths Egypt Arabia
That the relics bone of Ishango, has been discovered in River Nile headwaters region (the northeastern part of the Democratic Republic of the Congo).
Ishango bone has been supposedly in about 20,000 years BC. Contents of this bone has been expressed is considered earliest prime considered earliest prime column, and it is multiplication of ancient Egypt.
Arabia
In 10th century, use the division sign ÷ (unknown inventor)
In 15th century, Al-Kashi was calculated circular constant to digits 16 decimal.

7. Concluding summary
First, The number were made for the ancient people to live. Then, Notation of each number made in various places.