It's finally 2020 and it's all about making that new years resolution thats going to better yourself going forward into the new year.
On December 31, the Romans imagined Janus looking backward into the old year and forward into the new year. This became a symbolic time for Romans to make resolutions for the new year and forgive enemies for troubles in the past.
The Romans also believed Janus could forgive them for their wrongdoings in the previous year. The Romans would give gifts and make promises, believing Janus would see this and bless them in the year ahead.