Q:Information:  - The Sega CD, released as the in most regions outside North America, is a CD-ROM accessory for the Sega Genesis video game console designed and produced by Sega as part of the fourth generation of video game consoles. The add-on was released on December 12, 1991 in Japan, October 15, 1992 in North America, and 1993 in Europe. The Sega CD lets the user play CD-based games and adds extra hardware functionality, such as a faster central processing unit and graphic enhancements. It can also play audio CDs and CD+G discs.  - The Sega Genesis, known as the in most regions outside North America, is a 16-bit home video game console which was developed and sold by Sega Enterprises, Ltd. The Genesis was Sega's third console and the successor to the Master System. Sega first released the console as the Mega Drive in Japan in 1988, followed by a North American debut under the Genesis moniker in 1989. In 1990, the console was distributed as the Mega Drive by Virgin Mastertronic in Europe, by Ozisoft in Australasia, and by Tec Toy in Brazil. In South Korea, the systems were distributed by Samsung and were known as the Super Gam*Boy, and later the Super Aladdin Boy.  - In the history of computer and video games, the fourth generation (more commonly referred to as the 16-bit era) of games consoles began on October 30, 1987 with the Japanese release of NEC Home Electronics' PC Engine (known as the TurboGrafx-16 in North America). Although NEC released the first fourth generation console, and was second to the Super Famicom in Japan, this era's sales were mostly dominated by the rivalry between Nintendo and Sega's consoles in North America: the Super Nintendo Entertainment System (the Super Famicom in Japan) and the Mega Drive (named the Genesis in North America due to trademark issues). Nintendo was able to capitalize on its previous success in the third generation and managed to win the largest worldwide market share in the fourth generation as well. Sega was extremely successful in this generation and began a new franchise, Sonic the Hedgehog, to compete with Nintendo's Mario series of games. Several other companies released consoles in this generation, but none of them were widely successful. Nevertheless, several other companies started to take notice of the maturing video game industry and began making plans to release consoles of their own in the future. This generation ended with the discontinuation of the Neo Geo in 2004.  - The Stanford Cardinal football program represents Stanford University in college football at the NCAA Division I FBS level and is a member of the Pac-12 Conference's North Division. Stanford, the top-ranked academic institution with a FBS program, has a highly successful football tradition. The team is currently known as the Cardinal, adopted prior to the 1982 season. Stanford was known as the "Indians" from 1930 to January 1972, and the "Cardinals" from 1972 through 1981. A student vote in December 1975 to change the nickname to "Robber Barons" was not approved by administrators.  - Bill Walsh College Football is a Super NES , Sega Mega Drive / Genesis , and Sega CD American football game ; one of the earliest videogames to deal with the sport at a college level . The game was followed by a sequel , Bill Walsh College Football ' 95 .  - Bill Walsh College Football '95 is a video game of the sports genre released in 1994 by EA Sports, and a follow-up to "Bill Walsh College Football". It features former NFL and then Stanford Cardinal football head coach Bill Walsh on the cover and several Stanford players. It also features the 1993 rosters of the college football teams featured.    Given the information above, choose from the list below the object entity that exhibits the relation 'publication date' with the subject 'bill walsh college football'.  Choices: - 15  - 16  - 1930  - 1982  - 1987  - 1989  - 1990  - 1991  - 1992  - 1993  - 1994  - december 1975
A:
1993