Wakanda

https://www.desiringgod.org/articles/at-home-in-wakanda

Wakanda is an actually known as Kingdom of Wakanda. It is a small nation in North East of Africa. For centuries they have remained in isolation and are now considered the most technologically advanced nation of the planet. Bi
rnin Zana is the capital and the largest city.

http://marvel.wikia.com/wiki/Wakanda

It is the most prominent of several fictional native African nations in the Marvel Universe and home to the superhero, Black Panther. Wakanda first appeared in Fantastic Four and was created by Stan Lee and Jack Kirby.

https://www.google.com/imgres?imgurl=https%3A%2F%2Fovermental.com%2Fwp-content%2Fuploads%2F2018%2F02%2FBlack-Panther-Golden-City-
Source : Google Images

Wakanda actually have a number of cults devoted to Heliopolitan deties who lef
t ancient Egypt at the time of pharaohs. Panther cults, White Gorilla cults, Lion cults and Crocodile cults. These cultshas their own different names and characteristics.

http://marvel.wikia.com/wiki/Birnin_Zana
Source : Google Images

Wakanda actually have been mentioned and showed earlier in movies before the Black Panther movie has been released. It is actually source of vibranium. It has been mentioned in Avengers Age of Ultron and and showed in map in Iron Man. In civil was, it has been showed in the movie at final, the place of Wakanda.

reference : https://en.wikipedia.org/wiki/Wakanda_(comics)