when was the last recorded supernova?????

Question: when was the last recorded supernova?????
- Keywords:
  supernova
Asked by Bennerf920 to RocketRich, Jenn, Floris, Elie, Col Op on 15 Mar 2016.
- Columbus Operations answered on 15 Mar 2016:
  
  I am not sure if it was last recorded, but ASASSN-15lh was observed in June 2015 and was very much talked about because it was the brightest we had ever seen.
  
  Here’s some more info about it:
  https://en.wikipedia.org/wiki/ASASSN-15lh

Question: when was the last recorded supernova?????