The answer is Louis and Clark
In the study of history as an academic discipline, a primary source is an artifact, document, diary, manuscript, autobiography, recording, or any other source of information that was created at the time under study. It serves as an original source of information about the topic
Answer:
USSR
Explanation:
The Sputnik 1 was made and launched by the Soviet Union, or USSR>
Johann Gutenberg influenced the spread of ideas by —


is famously known for having designed and built the first printing press to produce the
.

Yes, he was shot in 1804 by Aaron Burr.