The system of raised dots used by many blind and visually impaired individuals to read was invented by
A) Helen Keller.
B) Charles Barbier.
C) Samuel Perkins.
D) Louis Braille.

Name: The system of raised dots used by many blind and visually impaired individuals to read was invented by A) Helen Keller. B) Charles Barbier. C) Samuel Perkins. D) Louis Braille.
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Louis Braille invented the system of raised dots known as Braille, which is used by blind and visually impaired individuals to read.

The System of Raised Dots Used by Many Blind and Visually