What are the release dates for Ultima IV Quest of the Avatar - 1985 VG

Ultima IV Quest of the Avatar - 1985 VG was released on:

USA: 1985 (Apple II version)
USA: 1985 (Commodore 64 version)
USA: 1985 (DOS version)
UK: 1986 (Commodore 64 version)
Japan: 1987 (MSX version)
USA: 1987 (Atari ST version)
USA: 1988 (Amiga version)
USA: 1990 (Sega Master System version)
USA: December 1990 (NES version)