Final answer:
The system of writing known for its wedge-shaped strokes is called cuneiform, originating from ancient Sumer. It is a logographic system that combines signs and symbols to convey words and ideas, as seen in artifacts like the Warka Vase.
Step-by-step explanation:
The system of writing in which the strokes are formed in a wedge or arrowhead shape is known as cuneiform. This ancient system was developed in Sumer and is derived from the Latin words cuneus, meaning 'wedge' and forma, meaning 'shaped.' Cuneiform is one of the earliest known systems of writing and is characterized by its logographic nature, meaning it primarily uses signs or symbols to communicate words or ideas.
It is important to note that cuneiform is not simply pictographic or ideographic, but rather it represents a combination of these elements to form a writing system that can convey complex ideas and narratives. Artifacts such as the Warka Vase provide insight into Sumerian cosmology and demonstrate the use of cuneiform. Other ancient writing systems include hieroglyphics, which also used symbols to represent sounds and ideas.