The alphabet is a set of characters of symbols used to communicate in a written form in a specific language. These characters may differ according to each nationality with some adopting similar characters while others are completely different.
The earliest known origin on the alphabet was to be the North Semetic during the period 1700 to 1500 BC originating in the Mediterranean. Towards 1000 BC the evolution of 4 other alphabets occurred from the Canaanites, Aramaic, South Semitic and Greeks
Aramaic formed the basis of Middle Eastern nations including Arabic, Hebrew and Indian.
From offshoots of the Greek alphabet formed modern Greek, Cyrillic and Etruscan. Cyrillic would then become the script for eastern European nations including Russia, Bulgarian and Serbian. Etruscan would then evolve into Latin, which was used by the Roman Empire. The Roman conquests throughout Europe spread Latin through out its empire. It initially began with 21 letters but after conquests and time it evolved to the modern day 26.
With the alphabet, history could now be recorded rather then memorised and would be fundamental in preserving human knowledge.