The first communication between humans via images was probably cave drawing. However, the first writing that did not mean exactly what was portrayed was hieroglyphs, which was basically pictures with a predetermined meaning. Later, the Sumerians, who lived in what is now Iraq, transformed their hieroglyphs into a set of dashes and lines called cuneiform. The Phoenicians of Palestine invented twenty-three characters that gradually evolved into the majority of the English alphabet. So the answer really depends on what you are asking.
Although there were some earlier forms of so-called proto-writing in China, it is generally assumed that the Sumerians created the earliest fully developed writing system called cuneiform around 4,000 BC.
cuneiform is a ancient system of writing made up of triangular shapes used to create symbols, and it is historically significant because this was the first major step in the road to our present day writing, this documented life in Sumerian times (such as the book The Epic of Gilgamesh),and led to the Phonecians creating the first "letters".
SUmer
They were made long before there was writing, so there are no records.
the first postal system was used by mesopotamia
To improve the writing of formal letters, the first thing to do is to learn how to properly format a formal letter. There are many guides available to help you write a formal letter such as one at Specimentemplates.
The first known written language is Sumerian, which originated in Mesopotamia around 3200 BCE. Sumerian cuneiform script was used to record administrative, economic, and religious information on clay tablets.
In 4100 BC the Sumerian’s developed the first system of writing.
The Sumerians, who lived in what is now Iraq and Iran sometime before 3000 BCE, were the first people to create a formal system of writing, called cuneiform writing. In this form of writing, symbols were pressed onto tablets of damp clay using a stylus, or small stick.
Because it was the first writing system in human history.
Formal writing does not use contractions, but it has no rule against first person pronouns, beyond making sure you never use "myself" as a substitute for "me."
It is better to avoid contractions in formal writing. The first person may or may not fit, depending upon your subject matter, but usually it is better to use the third person.
the first writing system
Mesopotamia, acclaimed as one of the first civilizations as well as for creating one of the first systems of writing. It is known as the "land of firsts"! Their writing system is called cuneiform.
Jose Rizal's first formal teacher was his mother, Teodora Alonso. She taught him the alphabet, reading, and writing at an early age before he began formal schooling.
The beginning of every paragraph should be indented in all formal writing.
Cuneiform is an ancient writing system used in Mesopotamia, made up of various wedge-shaped characters. It was primarily used to write in Sumerian, Akkadian, and other languages of the ancient Near East. This system was inscribed on clay tablets and was one of the earliest known forms of writing.