the Phoenecians originated numbers to keep track of trade information. dont know letters The Romans derived our alphabet from the Greek alphabet about 500 BC. St Cyril derived the Cyrillic alphabet from the Greek alphabet about 1000 AD.
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In English, there is a clear distinction between numbers and letters. In Hebrew, letters are also numbers.
The Romans did but these letters or numerals represented numbers.
It is algebra that represents numbers by letters which are called variables.
If the numbers and letters can be repeated then there are 45,697,600 possible outcomes. If the letters and numbers can not be repeated there are 32,292,000 possible outcomes.
Alphanumerical is consisting of letters and numbers.