Image by Science in HD on Unsplash



Matthew Smith on Unsplash



Image by Michael Heuss on Unsplash



Image by Timothy Dykes on Unsplash



Image from Pixabay




Image photographed by Harry Whittier Frees ca 1930s



**Featured Image from an old screensaver 

**Science featured Image screenshot from The Devil Commands, 1941 on Blackholereviews

Featured image for science sub-categories by SOARnet on Pixabay

**Nature featured image: Cumberland Falls rainbow, 2008 by James St. John – Wikimedia

Featured images for sub-categories:

Autumn mountain by Noah Buscher on Unsplash
Turtles by Massimo Negrello on Unsplash
Lightning by NOAA on Unsplash

**Religion featured image by Chirag K on Unsplash

**Linguistics featured image by Jason Rosewell on Unsplash

**Health featured image by Harry Whittier Frees ca 1930s

Featured images for sub-categories:

Herbalism & Folklore from Pexels
Modern Medicine from Edward Jenner on Pexels
Wellness from Pexels

**Food & Feasts image from lukasbieri on Pixabay

Featured images for sub-categories

Wildcrafting from Mabel Amber on Pixabay 
Agrarian from American Mountain People by National Geographic, photographer Bruce Dale
Canning & Recipes from U.S. Extension Service, Library of Congress – 1931