For the first time since 1953, South Koreans can now legally have sex with someone other than their spouse.
The Seoul-based, English-language newspaper the Korea Herald described Thursday's ruling as "reflecting a growing importance of personal choice over marital order in a traditionally group-oriented society."
The BBC reported that about 100,000 people have been prosecuted under the law over the years, with the Herald adding that the penalty for those convicted was two years in jail. In 2014 alone, 900 South Koreans were prosecuted for adultery, The Guardian reported.
The adultery law had been challenged numerous times. In 1990, 1993, and 2001 judges upheld the law, the BBC reported. They narrowly upheld the law again in 2008, though at the time five of the judges said it was unconstitutional.