I maintain a table on Google Sheets.   It's easy to see the date for each milestone since it is part of the URL for each comment or post. e.g.,  for post 80,000

It got too voluminous to list from the beginning.  The last one where I had shared the full table was 

Daily discussion thread

saloon

I maintain a table on Google Sheets.   It's easy to see the date for each milestone since it is part of the URL for each comment or post. e.g.,  for post 80,000 

https://stacker.news/items/80000

It got too voluminous to list from the beginning.  The last one where I had shared the full table was [from September](https://stacker.news/items/70180).