How to know the original column name after renaming on a dashboard?

Hi everyone, here is my issue in detail:

  1. I've created a query and visualised it as a table
  2. I've added this table to a dashboard
  3. On the dashboard, I clicked the pencil icon (edit)
  4. And on the table, I clicked the palette icon (visualisation options)
  5. Here, I renamed a column (example: old col. name was "opens" and I renamed it to "clicks")

Is there any way for me in the future or others to know that this column was "opens" originally and I renamed it?

unfortunately not. I would rename it on the source question rather than on the viz settings of the card, as you'll end up having to rename it on every single card on dashboards though