Logograph: A sign that stands for a whole word or for part of a word. (e.g. hieroglyphs)
Phonetic: A system with signs that stand for sounds (e.g. written language such as English)
A logophonetic system is one that uses a combination of both of these.
(http://www.santarosa.edu/~mbond/17mayawriting.pdf)
Cuneiform script consists of a combination of logophonetic, consonantal alphabetic, and syllabic signs. It is composed of wedge-shaped characters that represent an early form of writing used in ancient Mesopotamia. There are hundreds of cuneiform signs, each representing different phonetic values, logograms (word symbols), or determinatives (semantic markers).
The Sumerians developed a writing system of wedge-shaped strokes which influenced the style of scripts in the fertile crescent for the next 3000 years. Over time all of the diverse writing systems, which encompass both logophonetic, consonantal alphabetic, and syllabic systems, became known as cuneiform.
AnswerYou can obtain this information by going to the below indicated link. Just copy and paste.. There are many things listed that were invented by the Sumer. List at least twoCuneiform dates back to the late 4th millrnnium B.C.E. and began as a system of pictographs. The system consists of a combination of logophonetic, consonantal alphabetic and syllabic signs.
Sequoyah is the only known human to invent letters who did not already know how to read. Most writing systems were invented by humans who already knew how to read some other writing system. For example, the Cyrillic alphabet was invented by Saints Cyril and Methodius. The oldest writing systems are generally credited to some god or goddess. For example, the goddess Carmenta is said to have invented the Latin alphabet (also called the Roman alphabet). The Greeks credited the Egyptian god Thoth (also called Hermes) with inventing hieroglyphs and the Greek alphabet. Ogma is said to have invented the Ogham alphabet. The Phoenician alphabet, called by convention the Proto-Canaanite alphabet for inscriptions older than around 1050 BC, is the oldest verified alphabet and many later alphabets (e.g. Greek, Roman, English, Cyrillic) can be traced back through "evolutionary" changes to it. There is no way to determine who invented the Phoenician alphabet. Cuneiform is one of the earliest systems of writing was developed around 3100 BC, is distinguished by its wedge-shaped marks on clay tablets. Its initial form was pictographic and was likely developed for accounting and inventory purposes among merchants, it eventually came to include a mixture of logophonetic, consonantal alphabetic and syllabic signs.