When can I reuse my calendar?

I have several old calendars stored away because the artwork is so beautiful that I'd like to find a way to recycle them. However, I just learned that it is possible to reuse them as calendars depending on the year. (Of course, some of the events may not match-upl) This handy website set you straight on what calendars from the past you can re-use this year, and when you can re-use this year's calendar in the future. (I just dug out one from 2017 and it's going to work for 2023. It's a standing calendar shaped like a vase with the months printed on flowers that you flip up. I'm so pleased that I can use it again!)