American & Irish Sign Language
The two languages have many similarities but are as unique and original as any other spoken language. There is no universal sign language. Throughout the world, you'll find numerous examples from British to Spanish to Japanese and so on. Even within the United States there exists multiple sign languages.
In the US and Canada, American Sign Language, or ASL, is one of the most common forms of communication for the Deaf and Hard-of-Hearing. In searching the origins of sign language in the US, one name continually pops up; Thomas Hopkins Galludet. Galludet formed the nations first school for the Deaf in 1817 after a trip to Europe to study methods of communication. Because of Galludet's efforts, other schools opened providing much needed opportunities for the Deaf.
Today, sign language is the fourth most used language in the United States. Irish Sign Language, ISL, is used by the majority of Deaf in Ireland. However, Northern Ireland uses its own, unique sign language.
You'll find videos below showing ISL, animals along with the numbers 1 through 20. Included is a video provided by a team of Deaf campers and staff from Deaf Film Camp 2014 at Camp Mark Seven. It is an ASL interpretation of Pharrell Williams "Happy." An expression of music in ASL composed by Rosa Lee Timm and Azora Telford.