sign

sign language

Period: Jan 3, 1570 to Jun 22, 2010

juan pablo de bonet

Jun 22, 1573

the intelligent man who invented sign language was juan pablo de bonet.

reduction of letter and art

Aug 19, 1620

reduction of letter and art for teaching mute people speak.

charles michel de i'Epee

Nov 25, 1712

founded the frist public school for the deaf.
impaired in france(paris).
He devoted his life to developing the worlds frist sign alphabet for the deaf.

school for deaf people

Jul 28, 1771

L'epee established the frist free public school for the deaf in paris in 1771.

laurent clerc

Dec 10, 1785

laurent clerc was born in paris,France in 1785.
At the age of one,he fell out of a chair and suffered the loss of his sense of hraring.
laurent clerc was the frist deaf person to stand befor congress.

sign language alphabet

Oct 25, 1817

american sign language alphabet

sign language number

Oct 25, 1817

American sign language number。