During that month, Americans experienced the collapse of Petersburg and evacuation of Richmond; the Confederate surrender at Appomattox and end of the Civil War; the assassination of President ...

Sabine Hossenfelder is a physicist and research fellow at the Frankfurt Institute for Advanced Studies in Germany. She currently works on dark matter and the foundations of quantum mechanics.

Harlan Hubbard (1900–1988), a Kentucky writer, environmentalist, and artist, spent many years trying to rediscover and revive the vanishing language of landscape in his watercolor paintings.