why was roseanne cancelled in 1997

The TV show "Roseanne" was not canceled in 1997 due to controversy. The original series aired from 1988 to 1997 and ended in that year as a conclusion of the show’s run. However, the reboot of "Roseanne," which aired in 2018, was abruptly canceled by ABC after the star Roseanne Barr made a racist tweet comparing Valerie Jarrett, a former Obama administration official, to an ape. This tweet led ABC to quickly cancel the revived series due to the backlash and the offensive nature of the comments. The original 1997 cancellation was a planned end, whereas the 2018 cancellation was due to this controversy.