Soul Calibur was released on July 30, 1998.
Soul Calibur adopted the 'Tekken-style' of character unlock, with a huge hidden roster that was unlocked by leaving the game on for months... It is common knowledge that you can tell the age of a modern Namco fighting game by counting characters, and this is one of only two arcade ones that you could measure still after a year (The other is "Tekken Tag Tournament
The Soul Calibur of the title is used by Xianghua during her final battle. It replaces her sword right before the fight against Inferno.
Bandai Music Entertainment released Soul Calibur Original Soundtrack (APCG-9006) on October 21, 1999.
Michael Jackson (1958~2009) used to own this game. It was sold at the official Michael Jackson Auction on April 24th, 2009.