I'm not aware of any country that added territory for scientific purposes.
The Chinese may have sent exploring expeditions as far as Africa and America, but certainly, they did explore. Islamic armies went out conquering territory, and in the early times they moved so quickly that they were surely exploring territory unknown to them as they did.
Unknown Territory was created in 1991.
They didn't. The US president ordered them to explore the Louisiana Territory that had just been purchased from France and was virtually unknown. It was their job.
Exploring the Unknown - 1977 was released on: USA: 30 October 1977
The cast of Exploring the Unknown - 1977 includes: Burt Lancaster as Narrator
no
The cast of Exploring the Unknown - 1999 includes: Mitch Pileggi as Host Michael Shermer as himself
Unknown becaus his date and place of birth is unknown.
Exploring the Unknown - 1999 Curse of King Tut's Tomb was released on: USA: November 1999
caves, tunnels or maybe even unknown cities for gold
There are some African countries that are probably more unknown than Turkmenistan.
I do not know look in a book