There will also be sign language taster sessions, sign songs, drama workshops and a deaf experience simulation, where people put on headphones demonstrating how everyday life would sound if you were partially deaf.

John Harmsworth, vice-chairman of the centre, in Littlegate Street, off St Ebbe's, said: "We fulfil a very great need here. People without hearing difficulties don't understand what it's like to be deaf. Lots of people don't even know what goes on inside here, they don't know what the centre stands for and what activities are carried out and what sources of information we provide."

The centre, which has only just got around to organising the celeberations, works alongside charity Deaf Direct and offers a range of support and information and puts people in touch with interpreting and language services.

Regular hearing aid clinics are held and there are also a number of different clubs and groups, including a youth group, deaf people's tea and coffee group and the Oxford Deaf Sports and Social Club.

Mr Harmsworth, who has been deaf since he was seven after contracting TB meningitis, said: "It's a resource not just for deaf people, but where non-deaf people can come for information about how to cope with their deaf friend or neighbour and where they can go for help."

Celebrations start tomorrow with exhibitions, talks and sign songs as well as presentations on the history and future of the centre. On Saturday, there will be a fun day, running between 10am and 4pm, with sign language taster lessons, free games equipment, sign songs, exhibitions and films.