http://www.osce.org/docs/english/1990-1999/summits/helfa75e.htm
This was signed by 35 nations Organization for Security and Co-operation in Europe in Helsinki in 1975.
... short story writer July 22 - Wilson Barrett, actor August 22 - Kate Chopin, author August 25 - Henri Fantin-Latour, painter August 29 - Murat V, deposed Ottoman ...