Belshazzar, co-regent of the Babylonian Empire, witnessed the supernatural inscription of the words Mene, Mene, Tekel, Upharsin on the palace wall on the night his kingdom fell. These words, each representing a measure of weight, symbolized specific values: Mene for 50 shekels, Mene again for 50 shekels, Tekel for 1 shekel, and Upharsin for 25 shekels, totaling 126 shekels. With each shekel equivalent to 20 gerahs, this amounted to 2,520 gerahs. The handwriting on the wall conveyed that God had weighed Belshazzar's kingdom and found it lacking, signifying that the empire would be handed over to the Medes and Persians, who captured Babylon that very night. The inscription also represented a period of punishment for Babylon lasting 2,520 years, derived from the prophetic measure where each day stands for a year in fulfillment.