Why is not possible to read the cornerstone inscription?

The cornerstone inscription is often difficult to read due to factors such as weathering, erosion, and the passage of time, which can obscure the text. Additionally, the material used for the cornerstone, whether stone or metal, may deteriorate or become damaged, further hindering legibility. In some cases, the inscription might be covered or partially hidden by subsequent construction or landscaping. Lastly, the inscription may be in an archaic language or script that is not easily decipherable without specialized knowledge.