Simplify the following text for a Grade 9 native English-speaking person.
Original: The English chemist John Dalton published the first scientific paper on this subject in 1798 , `` Extraordinary facts relating to the vision of colors '' , after the realization of his own color blindness .
Simplified: The English chemist John Dalton published the first scientific article about color blindness in 1798 , after he found out that he suffered from color blindness himself . The article was called `` Extraordinary facts relating to the vision of colors '' .