What Do You Know ... About Preserving Knowledge?

Editor’s Note: This article previously appeared in a different format as part of The Atlantic’s Notes section, retired in 2021.
Zak Bickel / The Atlantic

In this week’s Atlantic coverage, our writers explored a plan to preserve all of human memory, America’s immigration history, how microbes spread through hospitals, the planet that could have been Earth, the evolutionary quirk that whales share with humans, and more.

Can you remember the key facts? Find the answers to this week’s questions in the articles linked above—or go ahead and test your memory now:

For more tricky questions and surprising facts, try last week’s quiz, and subscribe to our daily newsletter.