Final answer:
Joseph was thirty years old when he began serving the Pharaoh in Egypt, set around 1800 BCE in the biblical narrative, connected to the larger context of the Hebrews' stay and eventual departure from Egypt.
Step-by-step explanation:
The biblical figure Joseph was thirty years old when he entered the service of the Pharaoh, according to Genesis 41:46. His story fits within the larger narrative of the Hebrews in Egypt, which is a subject of both religious text study and historical research. Biblical accounts place the arrival of Joseph's family in Egypt around 1800 BCE. Here they lived for several generations until they were enslaved by a later Egyptian pharaoh, a story which culminates in the rise of Moses, who eventually leads the Hebrews out of Egypt in the event known as the Exodus. While the biblical narrative does not name the pharaoh during Joseph's time, some historians associate the Hebrews' sojourn with the period of Hyksos rule around 1600 BCE. Scholars continue to debate the accuracy of these biblical chronologies, as they often rely more on religious texts than secular historical evidence.