History Explained on Instagram: "Follow @HISTORY__EXPLAINED for more interesting content! ✅ The video highlights Li Mengke, the general manager of a hotel in Jiuquan, China, as she personally instructs her team in the precise technique of creating “hospital corners,” a bed-making style rooted in military practice. By folding the sheets at an exact 45-degree angle, the method produces a crisp, wrinkle-free appearance that reflects discipline, cleanliness, and professional standards. First circula