Sputnik

From BUSLIB:

For the 50th anniversary of the launch of Sputnik on October 4, 1957, the New York Times has published a series of articles in the Science Times series The Space Age.

NASA offers a timeline, links to primary documents, and more, while and other primary docs are available from the NARA/Eisenhower Library.

NewspaperArchive.com offers tens of thousands of FREE full text, full image articles on various topics organized into special collections. Articles are PDFs. Each collection has a timeline. They also offer most of their database of over 70 million articles for free to K-12 schools.

NewspaperArchive publishes a daily newsletter with articles
about that day in history.

Finally, What's That Sound?