Nikoghayos Tigranian
Born: 31st August 1856, Gyumri, Armenia
Died: 17th February 1951, Yerevan, Armenia
Nationality: Armenian
Nikoghayos Tigranian was an Armenian composer, pianist, musicologist, and sociocultural activist. He introduced the Braille System to Armenia.
Read more at https://en.wikipedia.org/wiki/Nikoghayos_Tigranian