Number is root of mathematics. Ancient man used different ways to count. Notational system originated and developed differently in different countries
Babylonians
A Vertical wedge stood for 1
Hebrews and Greeks
Alpha -1
Beta – 2
i (iota) = 10
Roman System
Hindu-Arabic System
Our present numerical system is called Hindu-Arabic system. 1,2, 3,… was originated by the Hindus. Arabs took it to the West and it named Hindu-Arabic system.