2. Why did Wakanda go into isolation?

Wakanda is home to a lot of Vibranium, one of the strongest metals in the Marvel Universe. To keep it out of the wrong hands, the ancestors isolated themselves. This idea is reinforced in Black Panther's mind when Ulysses Klaw breaks into Wakanda, kills his people, and steals Vibranium to sell to arms dealers.

Explanation:

:)

Wakanda is home to a lot of Vibranium, one of the strongest metals in the Marvel Universe. To keep it out of the wrong hands, the ancestors isolated themselves. ... If it's advanced technology were to be put into the wrong hands, like the ancestors were worried about, it would be devastating

doesn't make any since

explanation:

a historian researching the immigration policies of the early 1900s would expect a source written today,rather than in 1910 to :

( a ) be more interested in objective data and statistics.