Answer:
Gulags
Explanation:
They were considered to be more of a prison system than camps, but he sent roughly 18 million people there and they were still in operation in 1953, until shortly after Stalin's death
Idk if this will help but here’s the answer
It tells to the world the justifications for the intended separation. We hold these truths to be self- evident, that all men are created equal, that they are endowed by their creator with certain unalienable rights, that among these are life, liberty and the pursuit of happiness.
The Astrolabe was used for determine the location.
D is the answeer. Hope this helps.