Ancient Sumerian texts reveal that early civilizations may have known far more about the world, time, and the gods than modern history admits. In this calm History For Sleep documentary, we explore what ancient tablets suggest about forgotten knowledge preserved in silence. Rather than dramatic claims, this episode quietly follows what Sumerian records actually describe — advanced cosmology, precise timekeeping, divine order, and truths that were intentionally left incomplete. Through slow narration and careful interpretation, we explore how early scribes recorded knowledge not as stories, but as fragments — hints of a deeper understanding passed down through symbols, omission, and ritual memory. This journey avoids speculation and modern theories, allowing the ancient sources to speak softly through what they say — and what they refuse to explain. Designed for deep sleep and relaxation, this episode features gentle pacing, no sudden sounds, and a steady rhythm meant to calm the mind while drifting through the oldest written knowledge on Earth. If this peaceful exploration resonates with you, consider liking the video and subscribing for more History For Sleep journeys into forgotten civilizations. You’re also welcome to share your location and local time in the comments — a reminder that listeners across the world are resting together. 00:00 Ancient Sumerian Knowledge and the First Records 04:30 What Early Tablets Actually Describe 11:20 Time, Order, and Cosmic Understanding 20:10 Knowledge Preserved Through Silence 30:05 Why Certain Truths Were Never Explained