What is the significance of ancient Sumerian hieroglyphs in understanding the history and culture of Mesopotamia?

Ancient Sumerian hieroglyphs are significant in understanding the history and culture of Mesopotamia because they provide valuable insights into the language, religion, government, and daily life of the Sumerian civilization. By studying these hieroglyphs, historians and archaeologists can decipher important texts, such as the Epic of Gilgamesh, and gain a deeper understanding of the beliefs, practices, and achievements of the ancient Mesopotamian people.