The Playwrights' Center was created in 1971.
Scottish Society of Playwrights was created in 1973.
Boston Playwrights' Theatre was created in 1981.
Patrick White Playwrights' Award was created in 2000.
Philip Parsons Young Playwrights Award was created in 1996.
Hudson Guild was created in 1895.
Jockeys' Guild was created in 1940.
Jewish Guild was created in 1897.
The Depreciation Guild was created in 2005.
Programmers Guild was created in 1998.
Guild Software was created in 1998.
Injustice Guild was created in 2001.