Final answer:
The Sumerians made significant contributions to future civilizations through the development of writing (cuneiform), their mathematical system based on 60, and social stratification leading to advancements in metalworking and tools.
Explanation:
The three greatest contributions the Sumerians made to future civilizations were:
- Development of Writing (Cuneiform): The Sumerians invented cuneiform, one of the world's first written scripts, which allowed for the recording of laws, religious texts, and commercial transactions, contributing to the advancement of communication and record-keeping.
- Mathematical System based on 60: They introduced a numerical system based on 60 that is still used today to divide time and measure angles in geometry, showcasing their early mathematical innovations.
- Social Stratification and Labor Specialization: Sumerians implemented labor specialization leading to advancements in metalworking, particularly in producing bronze tools and weapons, enhancing their combat and agricultural capabilities.
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