Color blindness, also known as color vision deficiency, is the decreased ability to see 
Do you know what colors are most commonly hard to see with the color blindness illness?
Its not about color but vision.it's a decreased ability to see color or differences in color.  
Ohh I see. What do people with color blindness do to cope with the effects of it?
People with total color blindness, however, may also have decreased visual acuity ,and rarely cope in brightness 
When was color blindness discovered to be a thing. How did people realize that they had a decreased ability to see color compared to people with normal vision?
blindness is an inherited problem in the development of one or more of the three sets of color-sensing cones in the eye. Males are more likely to be color blind than females, as the genes responsible for the most common forms of color blindness are on the X chromosome. As females have two X chromosomes, a defect in one is typically compensated for by the other, while males only have one X chromosome. Color blindness can also result from physical or chemical damage to the eye, optic nerve or parts of
Color blindness
Color blindness, also known as color vision deficiency, is the decreased ability to see color or differences in color. Simple tasks such as selecting ripe fruit, choosing clothing, and reading traffic lights can be more challenging. Color blindness may also make some educational activities more difficult. However, problems are generally minor, and most people find that they can adapt. People with total color blindness (achromatopsia) may also have decreased visual acuity and be uncomfortable in bright environments.
The most common cause of color