May 24, 1844: Samual F. B. Morse, whose wife was deaf, dispatched the first telegraphic message over an experimental Baltimore-Washington telegraph line. Morse's financial manager Kendall donated a part of his wealth to build an institution (now Gallaudet University) on his estate.
May 25, 1947: Japanese Federation of the Deaf was formed.
May 21, 2015: Papula New Guinea's government officially endorsed sign language as the country's fourth official language alongside English, Tok Pisin and Motu.
May 24, 2016: Nyle and his partner Peta Murgatroyd won the Mirror Ball trophy in Season 22 of Dancing With the Stars.