Groundbreaking Discovery: An Ancient Sharpening Tool Archaeologists have unearthed a remarkable artifact in what is now the United Kingdom: a triangular tool carved from elephant bone, dating to roughly 480,000 years ago. This small, slender object—measuring about 4.3 by 2.3 inches (10.9 by 5.8 cm)—appears to have been used as a deliberate ax sharpener, offering…