What is the most significant discovery in archaeology, and why?

The discovery of the tomb of Tutankhamun in 1922 is considered one of the most significant discoveries in archaeology due to the richness and completeness of its contents and the insights it provides into Ancient Egyptian civilization. The tomb was discovered by British archaeologist Howard Carter and his team in the Valley of the Kings in Egypt. It contained a vast array of funerary objects and treasures, including the famous golden death mask of Tutankhamun. The tomb's preservation allowed archaeologists to study the objects in detail and gain a better understanding of the art, religion, and daily life of the Ancient Egyptians.

Another significant discovery is the Rosetta Stone, which was found in 1799 by French soldiers in Egypt. It provided the key to deciphering hieroglyphics, a script that had been undecipherable for centuries. The stone contained inscriptions in three scripts: Ancient Greek, Demotic, and hieroglyphics. The decipherment of hieroglyphics revolutionized the study of Ancient Egypt, allowing scholars to read and interpret inscriptions on tombs, temples, and other artifacts.