Unified Emulator Format was created on 2000-08-10.
Dolphin - emulator - was created in 2003.
Hercules - emulator - was created in 1999.
UAE - emulator - was created in 1996.
If the file is in GCM format instead then the emulator will still work properly.
Unified Silla was created in 668.
Unified Grocers was created in 1999.
Mariateguist Unified Party was created in 1984.
Unified Software Technologies was created in 2012.
Unified Socialist League was created in 1962.
Unified Buddhist Church was created in 1969.
Sierra Sands Unified School District was created in 1960.
Alhambra Unified School District was created in 1886.