Final answer:
The limestone altar stele with Akhenaten and his family is an ancient artifact from the New Kingdom period of Ancient Egypt, specifically from around 1640 - 1070 BCE. It is a stone tablet with inscriptions that depicts Akhenaten, his wife Nefertiti, and their family.
Step-by-step explanation:
The subject of this question is History. The limestone altar stele with Akhenaten and his family is an ancient artifact from the New Kingdom period of Ancient Egypt, specifically from around 1640 - 1070 BCE. It is a stone tablet with inscriptions that depicts Akhenaten, his wife Nefertiti, and their family.