Quirks of the API to address at a later date

Currently, we have these 3 dates 'modification_date', 'created', 'published'
These might want to be changed to 'modification_date', 'created_date', 'published_date'
Add more to this issue as they come up.

Start by locating the API definitions and usages of the modification_date, created, and published fields. Clarify the intended naming and compatibility scope before changing references; done means the agreed field names are applied consistently across the API without breaking existing behavior.

Written by the indexing model from the issue text.