the anwser is 1837 why because a a guy wanted to take a picture of his wife
Clouds
The unusual birthday ritual in Fish Cheeks causes a vivid picture.
It's an electrical force that causes strength to a magnetic appearance .
Natural development and selection.
A disease that causes your physical appearance not to age.
The sun
big dig
The appearance of a flat horizon when viewed from a distance is caused by the curvature of the Earth.
Rosacea commonly causes a "blushing" appearance.
The organism that causes leprosy is a rod-shaped bacterium called Mycobacterium leprae.
the shadow of the earth as the moon orbits around it.