There were slightly later examples of this cursive script from the reign of kings Aha and Den, both of the first Dynasty, but it was the 4th Dynasty that there are substantial records written in hieratic.
The direction of writing in the hieroglyphic script varied - it could be written in horizontal lines running either from left to right or from right to left, or in vertical columns running from top to bottom.
This is due to the fact that the writing system does not record vowels, and therefore different words with the same set of consonants but different vowels can be written by the same sequence of glyphs. The Greeks took letters which did not represent sounds that existed in Greek and changed them to represent the vowels.
By BCE Egyptian writing had a set of some 22 hieroglyphs to represent syllables that begin with a single consonant of their language, plus a vowel or no vowel to be supplied by the native speaker.
In fact, Both of these variants date from the dawn of Egyptian civilization at the latter half of the 3rd millenium BCE at a time period called the Predynastic period.
It offers an explanation of close to signs.
Champollion's name is forever linked with the Rosetta Stone and the decipherment of hieroglyphics because of the famous publication of his work in CE which conclusively showed that Egyptian hieroglyphics were a writing system composed of phonograms, logograms, and ideograms.
Examples of logograms: Like Proto-Sinaitic-derived scriptsEgyptians wrote only with consonants.
Actually, hieroglyphics were still in use as late as the Ptolemaic Dynasty and only fell out of favor with the rise of the new religion of Christianity during the early Roman Period.
One of these became the Latin alphabet, which was spread across Europe as the Romans expanded their empire. This is just like we have when some of our letters can make the same sound depending on the word for example "c" and "k". They didn't use any punctuation.